Chart Highlights: Pharrell's 'Happy,' John Legend's 'All Of Me' Expand Reigns

Pharrell Williams performs during the 2014 Coachella Valley Music And Arts Festival at The Empire Polo Club on April 19, 2014 in Indio, California.

C Flanigan/FilmMagic

'Happy' takes over atop a sixth singular-format Billboard airplay chart, while 'All of Me' grants Legend his first Pop Songs and Rhythmic Songs No. 1s. Plus, new No. 1s for A Great Big World & Christina Aguilera, Fitz and the Tantrums and more

Chart Highlights offers a sneak peek at a select group of Billboard charts every Monday. Find out the top songs, Greatest Gainers and debuts on the surveys listed below.

All our charts are refreshed on billboard.com and Billboardbiz every Thursday and appear in the next issue of Billboard magazine.

Adult Contemporary
*** No. 1 (1 week)*** "Happy" Pharrell Williams
Pharrell Williams' "Happy" takes over atop a sixth single-format Billboard airplay chart, rising 3-1 on Adult Contemporary. The cut rules Adult Pop Songs, R&B/Hip-Hop Airplay and Adult R&B Songs for a fifth week each. It crowned Pop Songs for four weeks and Rhythmic Songs for two, departing the latter chart's summit this week; the song that replaces it at No. 1? Check the next chart below ...

Greatest Gainer No. 6 "All Of Me" John Legend
Debut No. 29 "Not A Bad Thing" Justin Timberlake

Pop Songs
*** No. 1 (1 week)*** "All Of Me" John Legend
John Legend lands his first No. 1 on both Pop Songs and Rhythmic Songs, as "All of Me" reaches the top of both tallies. On Pop Songs, he'd made one prior visit: "Green Light," featuring Andree 3000, motored to No. 21 in 2009. On Rhythmic Songs, "Light" is Legend's second-highest-peaking of five entries (No. 8). Legend's "All" dethrones Pharell Williams' "Happy" atop the radio-driven Rhythmic Songs chart; could it do the same on the airplay/sales/streaming-based Billboard Hot 100 this week? Check Billboard.com on Wednesday to find out ...

Greatest Gainer No. 19 "Sing" Ed Sheeran
Debut No. 33 "Birthday" Katy Perry

Rhythmic Songs
*** No. 1 (1 week)*** "All Of Me" John Legend
Greatest Gainer No. 9 "Fancy" Iggy Azalea Featuring Charli XCX
Debut No. 36 "Wild Wild Love" Pitbull Featuring G.R.L.
Debut No. 37 "Sing" Ed Sheeran
Debut No. 40 "Show Off" SoMo

Adult Pop Songs
*** No. 1 (5 weeks)*** "Happy" Pharrell Williams
Greatest Gainer No. 15 "Sing" Ed Sheeran
Debut No. 38 "Already Home" A Great Big World
Debut No. 39 "Birthday" Katy Perry
Debut No. 40 "Break Your Plans" The Fray

Dance Club Songs
*** No. 1 (1 week)*** "Say Something" A Great Big World & Christina Aguilera
Greatest Gainer No. 3 "Partition" Beyonce
Debut No. 43 "Exit" Maor
Debut No. 44 "Crazy Stupid Love" My Crazy Girlfriend

R&B/Hip-Hop Airplay
*** No. 1 (5 weeks)*** "Happy" Pharrell Williams
Greatest Gainer No. 5 "Loyal" Chris Brown Featuring Lil Wayne & French Montana Or Too $hort Or Tyga
Debut No. 37 "We Dem Boyz" Wiz Khalifa
Debut No. 43 "You're My Star" Tank
Debut No. 49 "I Won" Future Featuring Kanye West

Adult R&B Songs
*** No. 1 (5 weeks)*** "Happy" Pharrell Williams
Greatest Gainer No. 25 "Make The World Go Round" DJ Cassidy
Debut No. 29 "Run" Marsha Ambrosius
Debut No. 30 "I Can Only Imagine" Tamela Mann

Rap Airplay
*** No. 1 (14 weeks)*** "Show Me" Kid Ink Featuring Chris Brown
Greatest Gainer No. 10 "Fancy" Iggy Azalea Featuring Charli XCX
Debut No. 24 "She Twerkin" Ca$h Out

Rock Airplay
*** No. 1 (10 weeks)*** "Do I Wanna Know?" Arctic Monkeys
Greatest Gainer No. 3 "Come With Me Now" KONGOS
Debut No. 49 "Who Needs You" The Orwells

Alternative Songs
*** No. 1 (1 week)*** "The Walker" Fitz And The Tantrums
Greatest Gainer No. 16 "Why'd You Only Call Me When You're High?" Arctic Monkeys
Debut No. 34 "This Is Gospel" Panic! At The Disco
Debut No. 39 "Best Friend" Foster The People

Adult Alternative Songs
*** No. 1 (2 weeks)*** "Fever" The Black Keys
Debut No. 25 "Stay With Me" Sam Smith
Greatest Gainer "Love Runs Out" OneRepublic

Mainstream Rock Songs
*** No. 1 (2 weeks)*** "Take Out The Gunman" Chevelle
Greatest Gainer No. 22 "This Means War" Avenged Sevenfold
Debut No. 36 "Sangre Por Sangre (Blood For Blood)" HellYeah
Debut No. 39 "Bloody Angel" Avatar

Country Airplay
*** No. 1 (2 weeks)*** "Drink To That All Night" Jerrod Niemann
Greatest Gainer No. 28 "My Eyes" Blake Shelton Featuring Gwen Sebastian

Debut No. 41 "Meanwhile Back At Mama's" Tim McGraw Featuring Faith Hill
Tim McGraw and Faith Hill return to the Country Airplay chart with the couple's first collaborative track in seven years, and their fifth overall, as "Meanwhile Back at Mama's" starts at No. 41. That’s the second-highest debut among those five charted songs, outpaced only by "It's Your Love," which debuted at No. 35 in May 1997 on its way to a six-week No. 1 reign. McGraw and Hill later rose to No. 3 with "Just to Hear You Say That You Love Me" (1998), No. 6 with "Let's Make Love" (2000) and No. 8 with "I Need You" (2007). The new collaboration previews McGraw's album "Sundown Heaven Town," due Sept. 16.

Debut No. 60 "Testing The Water" Thompson Square

Latin Airplay
*** No. 1 (6 weeks)*** "Odio" Romeo Santos Featuring Drake
Greatest Gainer No. 24 "Bailando" Enrique Iglesias Featuring Descemer Bueno & Gente de Zona
Debut No. 39 "Mientras Tu Jugabas" Banda Los Recoditos
Debut No. 40 "Olvidar" La Ley
Debut No. 49 "Flor Palida" Marc Anthony
Debut No. 50 "Tus Latidos" Calibre 50

Regional Mexican Songs
*** No. 1 (6 weeks)*** "Te Hubieras Ido Antes" Julion Alvarez y Su Norteno Banda
Greatest Gainer No. 16 "Mientras Tu Jugabas" Banda Los Recoditos
Debut No. 33 "Se Quedaron A Tres Pasos" Calibre 50
Debut No. 37 "Las Chicas Malas" Los Horoscopos de Durango
Debut No. 40 "Nadie Me Vera Llorar" Grupo Montez de Durango

Latin Pop Songs
*** No. 1 (3 weeks)*** "Odio" Romeo Santos Featuring Drake
Debut/Greatest Gainer No. 37 "El Gran Perdedor" Tito "El Bambino"
Debut No. 40 "Si Te Molesta" Mojito Lite

Tropical Songs
*** No. 1 (1 week)***/Greatest Gainer "Bajo La Tormenta" Sergio George Presents Salsa Giants
Debut/Greatest Gainer No. 33 "El Gran Perdedor" Tito "El Bambino"
Debut No. 34 "Te Vivi" Villamizar Featuring Maluma y Elvis Crespo
Debut No. 36 "Ponle En Venta" Kara'Bana
Debut No. 40 "Pau Pau" Kalimete

Christian Airplay
*** No. 1 (10 weeks)*** "This Is Amazing Grace" Phil Wickham
Greatest Gainer No. 10 "Do Something" Matthew West
Debut No. 33 "Glorious Unfolding" Steven Curtis Chapman
Debut No. 40 "Multiplied" Needtobreathe

Gospel Airplay
*** No. 1 (6 weeks)*** "I Can Only Imagine" Tamela Mann
Greatest Gainer No. 18 "You Paid It All" Wess Morgane

Additional reporting by Wade Jessen