FILE - In this Nov. 18, 2012 file photo, Christina Aguilera performs at the 40th Anniversary American Music Awards in Los Angeles. The Rock and Roll Hall of Fame and Museum announced Wednesday, Jan. 23, 2013, that Aguilera, John Mayer and Jennifer Hudson are among the stars set to perform at the 28th annual Rock and Roll Hall of Fame induction ceremony to be held on April 18, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP, File)
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