Chart Highlights: Britney Spears & Iggy Azalea's 'Pretty Girls' Tops Dance Club Songs

Courtesy of YouTube
Iggy Azalea and Britney Spears in the video for "Pretty Girls."

Plus, Demi Lovato's flirty new single soars onto Pop Songs and Shinedown continues its perfect top 10 streak on Mainsream Rock Songs.

Chart Highlights offers a sneak peek at a select group of Billboard charts. (All charts below, dated July 18, are based on radio airplay except for Dance Club Songs, which is based on reports submitted by a panel of DJs.) Find out the top songs, Greatest Gainers and debuts on the surveys listed below.

All our charts will refresh on Billboard.com and Billboardbiz on Thursday (July 9).

Dance Club Songs
*** No. 1 (1 week)*** "Pretty Girls" Britney Spears & Iggy Azalea
Following its No. 29 peak on the Billboard Hot 100 in May (and much recent online back-and-forth), Spears and Azalea's "Pretty Girls" rules the Dance Club Songs chart. It's Spears' ninth No. 1 on the chart and first since "I Wanna Go" in 2011. Azalea reigns for the fourth time.

Greatest Gainer No. 7 "B**** I'm Madonna" Madonna Featuring Nicki Minaj
Debut No. 42 "Generate" Eric Prydz
Debut No. 44 "Fun" Pitbull Featuring Chris Brown
Debut No. 45 "Erase Me" Super Square
Debut No. 47 "Bad Blood" Taylor Swift Featuring Kendrick Lamar
Debut No. 48 "Done" Ryan Skyy Featuring Niki Darling


Dance/Mix Show Airplay
*** No. 1 (2 weeks)*** "Lean On" Major Lazer & DJ Snake Featuring MO
Greatest Gainer No. 8 "Can't Feel My Face" The Weeknd
Debut No. 21 "Holding On" Disclosure Featuring Gregory Porter
Debut No. 25 "Hold My Hand" Jess Glynne
Debut No. 29 "SummerThing!" Afrojack Featuring Mike Taylor
Debut No. 36 "Generate" Eric Prydz
Debut No. 40 "B**** Better Have My Money"


Rhythmic Songs
*** No. 1 (2 weeks)*** "You Know You Like It" DJ Snake & AlunaGeorge
Greatest Gainer No. 7 "Can't Feel My Face" The Weeknd
Debut No. 32 "Cheyenne" Jason Derulo
Debut No. 37 "Choices (Yup)" E-40
Debut No. 38 "Alright" Kendrick Lamar


Adult Contemporary
*** No. 1 (2 weeks)*** "Style" Taylor Swift
Greatest Gainer No. 13 "Bad Blood" Taylor Swift Featuring Kendrick Lamar
Debut No. 26 "Time Machine" Ingrid Michaelson


Adult Pop Songs
*** No. 1 (8 weeks)*** "Shut Up And Dance" WALK THE MOON
Greatest Gainer No. 21 "Can't Feel My Face" The Weeknd
Debut No. 35 "Renegades" X Ambassadors
Debut No. 39 "Like I'm Gonna Lose You" Meghan Trainor Featuring John Legend


Pop Songs
*** No. 1 (3 weeks)*** "Bad Blood" Taylor Swift Featuring Kendrick Lamar

Demi Lovato Gets Aggressive on Red-Hot 'Cool For The Summer': Single Review

Debut/Greatest Gainer No. 22 "Cool for the Summer" Demi Lovato
Lovato leaps onto Pop Songs at No. 22 with her new seasonally-appropriate single, thanks, in part, to hourly plays July 1 on participating iHeartMedia stations. The debut marks her highest on the chart, where she's notched four top 10s, including the No. 1 "Give Your Heart a Break" in 2012.

Debut No. 37 "Marvin Gaye" Charlie Puth Featuring Meghan Trainor
Debut No. 39 "Bad Girls" MKTO
Debut No. 40 "Around The World" Natalie La Rose Featuring Fetty Wap


R&B/Hip-Hop Airplay
*** No. 1 (13 weeks)*** "Earned It (Fifty Shades Of Grey)" The Weeknd
Greatest Gainer No. 26 "All Eyes On You" Meek Mill Featuring Chris Brown & Nicki Minaj
Debut No. 47 "679" Fetty Wap / Remy Boyz
Debut No. 50 "My Favorite Part Of You" Charlie Wilson


Adult R&B Songs
*** No. 1 (7 weeks)*** "Earned It (Fifty Shades Of Grey)" The Weeknd
Greatest Gainer No. 8 "No Sleeep" Janet
Debut No. 29 "Morning Sun" Robin Thicke


Rap Airplay
*** No. 1 (1 week)*** "See You Again" Wiz Khalifa Featuring Charlie Puth
Greatest Gainer No. 5 "My Way" Fetty Wap
Debut No. 22 "679" Fetty Wap / Remy Boyz


Rock Airplay
*** No. 1 (3 weeks)*** "Renegades" X Ambassadors
Debut/Greatest Gainer No. 17 "Cut The Cord" Shinedown
Debut No. 44 "Outta My Mind" ARCS
Debut No. 45 "Different Colors" WALK THE MOON
Debut No. 48 "I Am" AWOLNATION


Alternative Songs
*** No. 1 (4 weeks)*** "Renegades" X Ambassadors
Debut/Greatest Gainer No. 38 "Outta My Mind" ARCS
Debut No. 39 "Molecules" Atlas Genius
Debut No. 40 "Now" Joywave


Adult Alternative Songs
*** No. 1 (2 weeks)***/Greatest Gainer "Dreams" Beck
Debut No. 26 "Tell Me What You Want From Me" Good Old War
Debut No. 29 "The Ghosts Of Beverly Drive" Death Cab For Cutie
Debut No. 30 "Satisfy Me" Anderson East
Greatest Gainer "Outta My Mind" ARCS


Mainstream Rock Songs
*** No. 1 (9 weeks)*** "Failure" Breaking Benjamin

Debut/Greatest Gainer No. 9 "Cut the Cord" Shinedown
More than 12 years into its history on the list, Shinedown scores its highest Mainstream Rock Songs debut, as "Cut the Cord" (No. 9) becomes its first song to start in the top 10. The song, premiered on Billboard.com (June 29) and from the band's forthcoming fifth studio album, is Shinedown's 19th Mainstream Rock Songs top 10 in as many visits, extending the group's record for the most consecutive top 10s in the chart's 34-year history.

Debut No. 40 "Bring It On Back" Buckcherry


Smooth Jazz Songs
*** No. 1 (1 week)*** "Coast To Coast" Vincent Ingala
Debut No. 12 "Fly With The Wind" Najee
Debut No. 27 "Harmony Park" Nate Harasim Featuring Dave Koz & Nils
Debut No. 29 "Cabo" Randy Scott
Greatest Gainer "Swagster" Jeff Golub


Country Airplay
*** No. 1 (2 weeks)*** "Sangria" Blake Shelton
Greatest Gainer No. 14 "House Party" Sam Hunt
Debut No. 52 "(This Ain't No) Drunk Dial" A Thousand Horses
Debut No. 58 "Backroad Song" Granger Smith
Debut No. 59 "Dibs" Kelsea Ballerini


Gospel Airplay
*** No. 1 (5 weeks)*** "This Place" Tamela Mann
Greatest Gainer No. 7 "Gotta Have You" Jonathan McReynolds
Debut No. 30 "I Luh God" Erica Campbell Featuring Big Shizz


Latin Airplay
*** No. 1 (12 weeks)*** "El Perdon" Nicky Jam & Enrique Iglesias
Debut/Greatst Gainer No. 35 "Piensalo" Banda Sinaloense MS de Sergio Lizarraga
Debut No. 36 "Noche de Pasion" Frank Reyes
Debut No. 38 "Si Lo Hacemos Bien" Wisin
Debut No. 44 "Cajita de Carton" Intocable
Debut No. 47 "Cuando Te Veo" ChocQuibTown
Debut No. 48 "Un Desengano" Conjunto Primavera Featuring Ricky Munoz


Regional Mexican Songs
*** No. 1 (2 weeks)*** "El Amor de Su Vida" Julion Alvarez y Su Norteno Banda
Debut/Greatest Gainer No. 12 "Piensalo" Banda Sinaloense MS de Sergio Lizarraga


Latin Pop Songs
*** No. 1 (9 weeks)*** "El Perdon" Nicky Jam & Enrique Iglesias
Debut No. 26 "Nadie Como" Flex
Debut No. 31 "Como Yo Te Amo" Gloria Trevi
Greatest Gainer "Ahora Que Te Vas" Christian Daniel


Tropical Songs
*** No. 1 (1 week)***/Greatest Gainer "Dificil" Jorge Villamizar Featuring Oscar D'Leon, Descemer Bueno & MoLa
Debut No. 36 "Se Desesperaba (El Carrito Azul)" Ricardo Montaner