"Queen of Disco" Donna Summer performs in 1979. (Michael Ochs Archives/Getty Images) Michael Ochs Archives/Getty Images hide caption

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Don Draper (Jon Hamm) tries to relax as The Beatles' "Tomorrow Never Knows" plays on the stereo at the end of the latest episode of Mad Men. Courtesy of AMC hide caption

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Released in December, Carly Rae Jepsen's "Call Me Maybe" has been rising on the charts — it reaches no. 5 this week — and winning the hearts of fans on YouTube. Vanessa Heins/Courtesy of the artist hide caption

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Nas performs his classic 1994 album, Illmatic, on stage at the Moody Theater in Austin, Texas during the 2012 SXSW music conference. Heather Kennedy/WireImage/Getty Images hide caption

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Bruce Springsteen and the retooled E Street Band ripped through a nearly three-hour "secret" concert at the Moody Theater, the new home of Austin City Limits, during SXSW. Ever the showman, Springsteen crowd-surfed. Michael Buckner/Getty Images for SXSW hide caption

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"Human expression is not confined to guitars." In his keynote address at SXSW Bruce Springsteen spoke of his love for pop of all flavors. Michael Buckner/Getty Images for SXSW hide caption

itoggle caption Michael Buckner/Getty Images for SXSW