From left, Yolanda Adams, Martina McBride, Christina Aguilera, Jennifer Hudson, and Florence Welch perform at the 53rd annual Grammy Awards on Sunday, Feb. 13, 2011, in Los Angeles. (AP Photo/Matt Sayles)
Lady Antebellum, from left, Charles Kelley, Hilary Scott, and Dave Haywood perform at the 53rd annual Grammy Awards on Sunday, Feb. 13, 2011, in Los Angeles. (AP Photo/Matt Sayles)
From left, John Mayer, Norah Jones and Keith Urban are seen onstage at the 53rd annual Grammy Awards on Sunday, Feb. 13, 2011, in Los Angeles. (AP Photo/Matt Sayles)
