Rixton perform live on Good Morning America on Jan. 6, 2015.

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Dr. Amy Heaton and Jennifer Lopez launch BodyLab, a revolutionary health and wellness brand designed for women by women, on Jan. 6, 2015 in Santa Monica, California.

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Lee Daniels and Gary Newman (Chairman and CEO, Fox Television Group) with cast members Taraji P.Henson and Terrence Howard, and Chairman and CEO, Fox Television Group Dana Walden celebrate during the Empire Series Premiere Event V.I.P. Party at the W Hotel on Tuesday, Jan. 6, 2015 in Hollywood, California.

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John Legend and Common perform live on Good Morning America on Jan. 5, 2014.

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Musical guests Raphael Saadiq and Big K.R.I.T. perform with The Roots on The Tonight Show Starring Jimmy Fallon on Jan. 5, 2015.

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Jimmy Fallon and Bradley Cooper "air-guitar" on The Tonight Show Starring Jimmy Fallon on Jan. 5, 2015.

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Ellie Goulding going for a swim at the beach on Jan. 5, 2015 in Miami, Florida.

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Lena Dunham and Jack Antonoff attend the "Girls" season four series premiere after party at The Museum of Natural History on Jan. 5, 2015 in New York City.

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Snoop Dogg attends "Snoop & Son: A Dad's Dream" Atlanta Screening at College Football Hall of Fame on Jan. 5, 2015 in Atlanta, Georgia.

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Jay-Z and Beyonce pose at the FantaSea attraction in Phuket, Thailand in Jan. 2015 during a vacation.

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Will.I.Am, Rita Ora, Ricky Wilson and Sir Tom Jones attend the launch of "The Voice UK" Series 4 at The Mondrian Hotel on Jan. 5, 2015 in London, England.

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Kat Dennings and boyfriend Josh Groban seen out in Tribeca after lunch at Bubby's on Dec. 31, 2014 in New York City.

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Tony Bennett and Lady Gaga perform their New Year's Eve concert together, complete with a midnight countdown, at The Chelsea inside The Cosmopolitan of Las Vegas on December 31, 2014 in Las Vegas, Nevada.

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Taylor Swift gets a proper kiss at midnight from Ryan Secrest live from Times Square in New York City on Dick Clark's New Year's Rockin' Eve 2015 on ABC.

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Miranda Lambert, sporting a pink headband and black leather jacket, performs at the Belk Bowl in Charlotte, NC on Dec. 30, 2014.

Katy Perry poses backstage with the cast of the Broadway musical "Beautiful" at The Stephen Sondheim Theater on Dec. 30, 2014 in New York City.  

Kiesza arrives at Foxtail nightclub at SLS Las Vegas on December 29, 2014.

Skrillex performs during the Snowglobe Music Festival at Lake Tahoe Community College on December 29, 2014 in South Lake Tahoe, California. 

Justin Bieber was spotted on an impromptu skate session on the streets of NYC on Sunday Dec. 28, 2014. He was driving around the city, and then randomly pulled over next to famed arena, Madison Square Garden, turning their steps into his own skate park. He jumped down multiple flights of stairs on his skateboard, falling a few times, but eventually landing his trick.

Taylor Swift is seen in New York City on December 26, 2014.

Zedd performs at Contact Winter Music Festival at BC Place on December 27, 2014 in Vancouver, Canada. 

French Montana shoots a basketball at a basketball game between the Toronto Raptors and the Los Angeles Clippers at Staples Center on December 27, 2014 in Los Angeles, California.

Taylor Swift is seen on Dec. 24, 2014 in New York City. 

Diplo and Skrillex attend a basketball game on Christmas between the Golden State Warriors and the Los Angeles Clippers at Staples Center on Dec. 25, 2014 in Los Angeles, California.  

Tony Bennett and Lady Gaga perform during a Good Morning America special Christmas Day program on Dec. 25, 2014.

Trey Songz performs at Sleeping Beauty Winter Castle at Disneyland park in Anaheim, Calif., during production of 'Disney Parks Frozen Christmas Celebration' on Dec. 25, 2014. 

Ezra Koenig attends New York Knicks vs Washington Wizards at Madison Square Garden on Dec. 25, 2014 in New York City. 

Patrick Monahan (R) and Jimmy Stafford from Train meet Donald Duck at Sleeping Beauty Winter Castle at Disneyland park in Anaheim, Calif., during production of 'Disney Parks Frozen Christmas Celebration' on Dec. 25, 2014.

One Direction members Liam Payne, Louis Tomlinson, Niall Horan, Zayn Malik and Harry Styles during an interview with Jimmy Fallon on The Tonight Show Starring Jimmy Fallon on Dec. 23, 2014.

Rihanna is seen on Dec. 24, 2014 in New York City.

Big Sean performs on The Tonight Show Starring Jimmy Fallon on Dec. 23, 2014.

Cyndi Lauper is seen on Dec. 24, 2014 in New York City. 

Fabolous (R) lends a hand to Chef Max Hardy (L) and the Food Bank for New York City's Community Kitchen of West Harlem on Dec. 23, 2014, in New York City. 

Johnathan Rice and Jenny Lewis perform on stage during "Make It Together" - a benefit for Josh Schwartz at the Echoplex on Dec. 22, 2014 in Los Angeles, California.

Jimmy Fallon and The Roots sing "Santa Claus is Coming to Town" with One Direction members Niall Horan, Zayn Malik, Liam Payne, Harry Styles and Louis Tomlinson on The Tonight Show Starring Jimmy Fallon on Dec. 22, 2014.

Shawn Mendes attends the 93.3 Jingle Ball Pre-Show Free Show at Amalie Arena on Dec. 22, 2014 in Tampa, Florida.  

Austin Swift, Taylor Swift, Andrea Swift and Scott Swift are seen on Dec. 22, 2014 in New York City. 

Charli XCX performs onstage during 93.3 FLZ¬ís Jingle Ball 2014 at Amalie Arena on Dec. 22, 2014 in Tampa, Florida. 

Robert Smith of The Cure performs on stage at Eventim Apollo, Hammersmith on Dec. 21, 2014 in London, United Kingdom.

Pharrell Williams performs during 93.3 FLZ¬ís Jingle Ball 2014 at Amalie Arena on Dec. 22, 2014 in Tampa, Florida. 

Jason Derulo and Singer/songwriter Meghan Trainor attend Y100ís Jingle Ball Village, Y100ís Jingle Ball 2014 official pre-show at BB&T Center on Dec. 21, 2014 in Miami, Florida.

Iggy Azalea and Charli XCX perform during Y100's Jingle Ball 2014 at BB&T Center on Dec. 21, 2014 in Miami, Florida.

Pete Wentz is seen on Dec. 21, 2014 in Miami Beach, Florida. 

Jeremih performs at Power 96.1's Jingle Ball at The Arena At Gwinnett Center on Dec. 19, 2014 in Duluth, Georgia. 

Will Packer, Mayor Kasim Reed, Chris Tucker, Young Jeezy, Ludacris and Johnathan Slocum attend the 2014 UNCF Mayor's Masked Ball at Atlanta Marriot Marquis on Dec. 20, 2014 in Atlanta, Georgia.  

The Foo Fighters perform on The Tonight Show Starring Jimmy Fallon on Dec. 18, 2014.

Rihanna meets her french fans during the shooting of her new video at Trocadero gardens on Dec. 18, 2014 in Paris, France. 

Demi Lovato and Kiesza attend 103.5 KISS FM's Jingle Ball 2014 at Allstate Arena on Dec. 18, 2014 in Chicago, Illinois.  

Jennifer Lopez accepts the Triple Threat award from actor Ryan Guzman onstage during the PEOPLE Magazine Awards at The Beverly Hilton Hotel on Dec. 18, 2014 in Beverly Hills, California. 

Fall Out Boy perform during 103.5 KISS FM's Jingle Ball 2014 at Allstate Arena on Dec. 18, 2014 in Chicago, Illinois. 

Garth Brooks performs on Jimmy Kimmel Live on Dec. 17, 2014.

Elvis Duran and Nicki Minaj at "The Elvis Duran Z100 Morning Show" at Z100 Studios on Dec. 17, 2014 in New York City. 

Paul McCartney during an interview with Jimmy Fallon on The Tonight Show Starring Jimmy Fallon on Dec. 17, 2014.

Nicki Minaj performs with Skylar Grey on The Tonight Show Starring Jimmy Fallon on Dec. 16, 2014.

Pharrell Williams, Gwen Stefani, Adam Levine and Blake Shelton on The Voice.

A.D. Miles, Justin Timberlake and host Jimmy Fallon during the "Camp Winnipesaukee" skit on December 16, 2014 on The Tonight Show Starring Jimmy Fallon.

Craig Wayne Boyd and Blake Shelton on The Voice.

Demi Lovato onstage during HOT 99.5’s Jingle Ball 2014 at Verizon Center on December 15, 2014 in Washington, D.C.

5 Seconds of Summer arrive in costume during HOT 99.5’s Jingle Ball 2014 at Verizon Center on December 15, 2014 in Washington, D.C.

Musical guest Idina Menzel performs "River" on The Tonight Show  Starring Jimmy Fallon December 15, 2014

Kenny Chesney performs onstage during the 2014 American Country Countdown Awards at Music City Center on December 15, 2014 in Nashville, Tennessee.

Miranda Lambert, Reba McEntire and Kelly Clarkson perform during the 2014 American Country Countdown Awards at Music City Center on December 15, 2014 in Nashville, Tennessee.

Ja Rule, Ashanti, and Ray J attend 106 & Park at BET studio on December 15, 2014 in New York City.

Iggy Azalea and Taylor Swift pose  backstage at iHeartRadio Jingle Ball 2014, hosted by Z100's Elvis Duran and presented by Goldfish Puffs at Madison Square Garden on Dec. 12, 2014 in New York City.  

Jay Z and Justin Timberlake perform on stage at Barclays Center on Dec. 14, 2014 in Brooklyn, New York. 

Gwen Stefani of No Doubt performs during day two of the 25th annual KROQ Almost Acoustic Christmas at The Forum on Dec. 13, 2014 in Inglewood, California.  

 Lily Allen performs on stage at Brixton Academy on Dec. 12, 2014 in London, United Kingdom. 

The Chainsmokers attend Republic Records Holiday Party at Provocateur in New York on Dec. 11, 2014.

Rihanna speaks onstage at The Inaugural Diamond Ball presented by Rihanna and The Clara Lionel Foundation at The Vineyard on Dec. 11, 2014 in Beverly Hills, California. 

Rick Ross performs with The Roots on The Tonight Show Starring Jimmy Fallon on Dec. 11, 2014.

Meghan Trainor performs at Town Hall in New York City on Dec. 11, 2014.

Kid Cudi performs onstage during Coach Backstage Rodeo Drive on Dec. 11, 2014 in Beverly Hills, California. 

Karen Bystedt and Chris Brown attend Chris Brown Hosts An Exclusive Serigraph Signing With Artist Karen Bystedt's LOST WARHOLS "Andy Goes Street" Collection at Guerilla Atelier on Dec. 10, 2014 in Los Angeles, California.  

Brian May, Adam Lambert and Roger Taylor attends the Queen and Adam Lambert photocall at Ritz Carlton on Dec. 11, 2014 in Berlin, Germany.  

Jessie J and Ariana Grande perform at Q102's Jingle Ball on Dec. 10, 2014 at the Wells Fargo Center in Philadelphia, Pennsylvania.

Iggy Azalea and Rita Ora perform at Q102's Jingle Ball on Dec. 10, 2014 at the Wells Fargo Center in Philadelphia, Pennsylvania.

AJ Calloway interviews Austin Mahone during his visit to 'Extra' at their New York studios at H&M in Times Square on December 10, 2014 in New York City. 

Dave Grohl of Foo Fighters performs during their concert on Dec. 10, 2014 at the Cape Town Stadium in Cape Town, South Africa.

Rivers Cuomo and Scott Shriner of Weezer hold puppies brought by Motley Zoo Animal rescue backstage during Deck the Hall Ball hosted by 107.7 The End at KeyArena on Dec. 9, 2014 in Seattle, Washington.

Sam Smith performs at MIX 104.1's 'Not So Silent Night' at InterContinental Boston on Dec. 9, 2014 in Boston, Massachusetts.

Steven Van Zandt sings with host Jimmy Fallon on The Tonight Show Starring Jimmy Fallon on Dec. 9, 2014

The tUnE-yArDs perform at Sonos Studio on Dec. 9, 2014 in Los Angeles, California.  

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge meet Jay Z and Beyonce during the Cleveland Cavaliers vs. Brooklyn Nets game at Barclays Center on Dec. 8, 2014 in Brooklyn, New York.

Meghan Trainor, Demi Lovato and host Nick Jonas attend 101.3 KDWB's Jingle Ball 2014 presented by Sky Zone Indoor Trampoline Park and Allstate at Xcel Energy Center on Dec. 8, 2014 in St Paul, Minnesota.  

Carrie Underwood during an interview with host Jimmy Fallon on The Tonight Show Starring Jimmy Fallon on Dec. 8, 2014.

Tracey Ullman, Lilla Crawford, Emily Blunt, Meryl Streep, Daniel Huttlestone, Anna Kendrick, MacKenzie Mauzy and Christine Baranski attend the world premiere of Into the Woods at the Ziegfeld Theatre on Dec. 8, 2014 in New York City. 

Taylor Swift performs during the Capital FM Jingle Bell Ball 2014 held at The O2 Arena in London on Dec. 7, 2014.

Liv Warfield onstage with Cyndi Lauper at the 2014 Cyndi Lauper  Friends: Home for the Holidays concert at the Beacon Theatre in New York on December 6, 2014.

Beyonce, Jay Z and Blue Ivy at the Annie premiere on Dec. 7, 2014 in New York City. 

Patrick Schwarzenegger and Miley Cyrus attend Haute Living presents Hublot ìTime Is Beautifulî at the estate of JR and Loren Ridinger on Dec. 5, 2014 in Miami, Florida.  

Nick Jonas and Demi Lovato perform at KIIS FM's Jingle Ball at Staples Center on Dec. 5, 2014 in Los Angeles, California. 

 Jessie J and Ariana Grande perform at KIIS FM's Jingle Ball at Staples Center on Dec. 5, 2014 in Los Angeles, California. 

Nicki Minaj performs on Saturday Night Live on Dec. 6, 2014.

Liam Payne, Zayn Malik, Louis Tomlinson, Harry Styles and Niall Horan in One Direction: The TV Special on December 4, 2014.

Miley Cyrus attends Jeremy Scott & Moschino Party with Barbie on Dec. 4, 2014 in Miami Beach, Florida. 

Allison Williams as Peter Pan and Taylor Louderman as Wendy Darling in Peter Pan Live!

Charli XCX attends the 2014 GQ Men Of The Year party at Chateau Marmont on December 4, 2014 in Los Angeles, California. 

Pharrell Williams attends a ceremony honoring him with a star on The Hollywood Walk of Fame on December 4, 2014 in Hollywood, California. 

Pauly Shore and David Guetta visit SiriusXM Studios on December 4, 2014 in New York City. 

ASAP Ferg and Gwen Stefani attend the collaboration celebration of Pharrell Williams and Adidas at Hinoki & The Bird on Dec. 3, 2014 in Los Angeles, California.  

Mariah Carey rehearses for the 82nd annual Rockefeller Christmas Tree Lighting Ceremony at Rockefeller Center on Dec. 3, 2014 in New York City.  

Charli XCX pops out of a giant cake at the Tumblr IRL with Charli XCX event on Dec. 2, 2014 in San Francisco, California.

Slim Jimmy and Swae Lee of Rae Sremmurd perform with The Roots on The Tonight Show Starring Jimmy Fallon on Dec. 2, 2014.

Taylor Swift walks the runway with Karlie Kloss during her performance at the Victoria's Secret Fashion Show on Dec. 2, 2014.

Betty Who performs at Logo TV's 2014 NewNowNext Awards at the Kimpton Surfcomber Hotel on Dec. 2, 2014 in Miami Beach, Florida.

Host Jimmy Fallon and journalist Brian Williams "Slow Jam the News" on The Tonight Show Starring Jimmy Fallon on Dec. 2, 2014.

Courtney Love, Harry Styles and Lana Del Rey attend a drinks reception at the British Fashion Awards at the London Coliseum on December 1, 2014 in London, England.  

Gwen Stefani and Pharrell Williams on The Voice on Dec. 1, 2014. 

The Edge  and Larry Mullen Jr. of U2, Bruce Springsteen, Carrie Underwood and Kanye West perform for World AIDS Day (RED) Concert at Times Square on Dec. 1, 2014 in New York City.

A$AP Ferg and A$AP Rocky of A$AP Mob perform during Red bull Sound Select 30 Days at Hollywood Palladium in Los Angeles, California on Nov. 30, 2014.

Madonna shakes hands with Malawi's president Professor Peter Mutharika prior to their meeting at Kamuzu Palace in the Capital Lilongwe on Nov. 28, 2014. 

Shawn Mendes performs at Wiltern Theatre on Nov. 26, 2014 in Los Angeles, California.  

Becky G performs on the Nickelodeon's Dora and Friends: Into The City float which makes its debut at the 88th Annual Macy's Thanksgiving Day Parade on November 27, 2014 in New York City.

Paul Stanley of KISS during the 88th Annual Macy's Thanksgiving Day Parade on November 27, 2014 in New York City. 

Meghan Trainor attends the 88th Annual Macy's Thanksgiving Day Parade on November 27, 2014 in New York City. 

Katy Perry poses with fans at the 28th Annual ARIA Awards 2014 at the Star on November 26, 2014 in Sydney, Australia.  

T.I. attends the T.I. Turkey Giveaway at Wade Walker Family YMCA on November 25, 2014 in Stone Mountain, Georgia. 

Lorde performs "Yellow Flicker Beat" on The Tonight Show Starring Jimmy Fallon on November 25, 2014.

Michael Clifford, Ashton Irwin, Luke Hemmings and Calum Hood of 5 Seconds of Summer pose for a portrait during the 28th Annual ARIA Awards 2014 at the Star on November 26, 2014 in Sydney, Australia. 

Garth Brooks joins The Ellen DeGeneres Show to perform “Ain’t Going Down (‘Til the Sun Comes Up)” and “Mom”  from his newest CD, “Man Against Machine” on Nov. 26, 2014.

AC/DC drummer Phil Rudd appears in court after being charged with threatening to kill and possession of meth and marijuana at Tauranga District Court on November 26, 2014 in Tauranga, New Zealand.  Phil Rudd was ACDC's drummer from 1975 to 1983.

Lady Gaga arrives at the 'VIP ROOM' Club on November 25, 2014 in Paris, France

Lindsey Stirling appears on NBC News' Today show on November 24, 2014. 

Nick Jonas attends Day 1 of the Macy's Thanksgiving Day Parade Rehearsals on November 24, 2014 in New York City.