Lady Gaga

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Lady Gaga performs at Stubb's in Austin, Texas, during the South by Southwest Music Festival on Thursday March 13, 2014. (AP Photo/Austin American-Statesman, Jay Janner)

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Lady Gaga performs at Stubb's in Austin, Texas, during the South by Southwest Music Festival on Thursday March 13, 2014. (AP Photo/Austin American-Statesman, Jay Janner)

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FILE - In this Nov. 24, 2013 file photo, Lady Gaga, center, and R. Kelly perform at the American Music Awards held at the Nokia Theatre L.A. Live, in Los Angeles. Publicity stunts and strange sights are nothing new at South By Southwest where Lady Gaga will take her turn with a fairly intimate concert Thursday night, March 13, 2014, before making the conference’s keynote speech on Friday. (Photo by John Shearer/Invision/AP, file)

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FILE - This Jan. 19, 2014 file photo shows Lady Gaga at the showing of the Atelier Versace Spring-Summer 2014 Haute Couture fashion collection in Paris. South By Southwest has slipped into hyperdrive as the music portion of the annual conference and festival opens this week. Kanye West and Jay Z have announced they're headed to Austin, Texas, and Lady Gaga will be a keynote speaker. (AP Photo/Zacharie Scheurer, File)