Jennifer Lopez is set to perform with will.i.am, likely their collaboration "T.H.E. (The Hardest Ever)", at the 2011 American Music Awards. Christina Aguilera will perform, oh, I don't know, with Maroon 5, while Nicki Minaj & David Guetta are set to open the show. Other performers include Kelly Clarkson & Mary J. Blige. The 2011 AMAs air live on ABC this Sunday, November 20th, @ 8/7c.