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An uncaged Zac Brown commands the stage during a performance on Nov. 16 in San Jose, Calif.
James Hetfield of Metallica performs on the 56th Annual GRAMMY Awards on Jan. 26 in Los Angeles
#JaredLeto of#ThirtySecondstoMars performs onstage at the 2014 #iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. Photo by Getty Images #longhair #hair #menshair #beard #aviator #avaiatorglasses
Santana won eight awards at the 42nd GRAMMYs in 2000, tying Michael Jackson's record and marking the first time a group or duo won six or more GRAMMYs in one night
June 6 - Of Monsters and Men posing for a photo before they perform as part of the iHeartRadio LIVE Coca-Cola Summer Series. Photo Credit: Roger Kisby
October 22, 2013 - iHeartRadio Theater Los Angeles' grand opening celebrating the release of Katy Perry's new album PRISIM in Burbank, CA. Listen to #KatyPerry on #iHeartRadio Photo: Chris Polk/Getty for iHeartRadio
Chris Daughtry looks cool in denim during a performance on "Fox & Friends" on June 6 in New York
Hugs for everyone. Rihanna embraces the love from her fans during a performance on Oct. 3 in Sydney
Dave Grohl goes with the flow during a performance at the Love Ride 30th Anniversary concert and motorcycle event on Oct. 20 in Glendale, Calif.
Filming of The Beatles' final public performance, on the roof of the Apple offices - The Beatles
Mick Jagger of the Rolling Stones