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FILE - In this Dec. 2, 2012 file photo, Katy Perry arrives at Trevor Live at the Hollywood Palladium, in Los Angeles. Kelly Clarkson and fun. are just two of the acts who will perform during the upcoming inaugural festivities, which also includes Beyonce, James Taylor, Stevie Wonder, Katy Perry and dozens of others. (Photo by Jordan Strauss/Invision/AP, File)

FILE - In this Dec. 2, 2012 file photo, Katy Perry arrives at Trevor Live at the Hollywood Palladium, in Los Angeles. Kelly Clarkson and fun. are just two of the acts who will perform during the upcoming inaugural festivities, which also includes Beyonce, James Taylor, Stevie Wonder, Katy Perry and dozens of others. (Photo by Jordan Strauss/Invision/AP, File)