Inside 'The Night That Changed America' Show

In This Photo: Katy Perry, John Mayer
Recording artists Katy Perry (L) and John Mayer pose backstage at 'The Night That Changed America: A GRAMMY Salute To The Beatles' at the Los Angeles Convention Center on January 27, 2014 in Los Angeles, California.
(Jan. 26, 2014 - Source: Larry Busacca/Getty Images North America) more pics from this album »