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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Ann Powers From The Streets Of Austin

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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

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Audio Only: Bruce Springsteen's SXSW Keynote

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Sinead O'Connor's new album, How About I Be Me (And You Be You)? comes out March 5. Courtesy of the artist hide caption

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Whitney Houston performs in 1988. David Corio/Getty Images hide caption

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Whitney Houston: Her Life Played Out Like An Opera

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Mumford & Sons. Courtesy of Billions hide caption

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Get To Know The Song Of The Year Nominees: Mumford And Sons' 'The Cave'

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Bon Iver in Fall Creek, Wisc., August 2010. D.L. Anderson/Courtesy of Shore Fire Media hide caption

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Get To Know The Song Of The Year Nominees: Bon Iver, 'Holocene'

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Kanye West's "All Of The Lights" is one of the five nominees for Song of the Year at the 2012 Grammy Awards. Chris Hyde/Getty Images hide caption

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Get To Know The Song Of The Year Nominees: Kanye West, 'All Of The Lights'

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