The list of Grammy performers has grown to eleven, with the additions today of Ashanti, the Dixie Chicks, Vanessa Carlton, Avril Lavigne, John Mayer, and members of the New York Philharmonic.
They join previously announced performers Coldplay, Faith Hill, Norah Jones, Nelly featuring Kelly Rowland, and Bruce Springsteen and the E Street Band.
Awards will be handed out February 23 from New York.
