PHOTOS: iHeartRadio Music Festival in Las Vegas

The iHeartRadio Music Festival is underway this weekend at the MGM Grand Garden Arena in Las Vegas.

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  • Shannon Bex, Aubrey O'Day, Andrea Fimbres and Dawn Richards of Danity Kane attend the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Mark Davis/Getty Images for Clear Channel

  • Singer Avril Lavigne attends the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Mark Davis/Getty Images for Clear Channel

  • Entertainer Miley Cyrus attends the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Christopher Polk/Getty Images for Clear Channel

  • Yasmine Yousaf (L) and Jahan Yousaf of Krewella attend the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Mark Davis/Getty Images for Clear Channel

  • Musicians Neil Perry, Kimberly Perry, and Reid Perry of The Band Perry attend the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Mark Davis/Getty Images for Clear Channel

  • Roger Taylor (L) and Brian May of Queen attend the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. David Becker/Getty Images for Clear Channel

  • Actress Kate Hudson attends the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Jason Kempin/Getty Images for Clear Channel

  • Entertainer Kelly Rowland attends the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. David Becker/Getty Images for Clear Channel

  • Singer Avril Lavigne (C) poses with her band during the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Christopher Polk/Getty Images for Clear Channel

  • Entertainer Miley Cyrus performs onstage during the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Jason Kempin/Getty Images for Clear Channel

  • Robin Thicke performs onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Sean 'Diddy' Combs (L) and Robin Thicke perform onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Musician Keith Urban performs onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Christopher Polk/Getty Images for Clear Channel

  • Musician Matthew Bellamy of the band Muse performs onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Christopher Polk/Getty Images for Clear Channel

  • Musician Keith Urban performs onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Recording artist Sir Elton John performs onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Singer Chris Brown performs onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Singer Chris Brown performs onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Christopher Polk/Getty Images for Clear Channel

  • Adam Lambert performs onstage with Queen during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Christopher Polk/Getty Images for Clear Channel

  • Actress Kate Hudson introduces a performance by Katy Perry during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Singer Katy Perry performs during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Singer Katy Perry (L) performs during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sep. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Singer Katy Perry (C) performs during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Singer Adam Lambert (L) and guitarist Brian May of Queen perform during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Singer Chris Brown performs during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Singer Chris Brown performs during the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2013 in Las Vegas, Nev. Ethan Miller/Getty Images for Clear Channel

  • Entertainer Miley Cyrus performs onstage during the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Christopher Polk/Getty Images for Clear Channel

  • The drum kit onstage during entertainer Miley Cyrus' performance during the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Jason Kempin/Getty Images for Clear Channel

  • Musician Kimberly Perry of The Band Perry performs onstage during the iHeart Radio Music Festival Village on Sept. 21, 2013 in Las Vegas, Nev. Mark Davis/Getty Images for Clear Channel