The upcoming Grammy Awards promise to be a star-studded affair, and the lineup of performers for music's biggest night is proving it.<br/> <br />Taylor Swift, Keith Urban and John Legend are among the performers just added to the list, which already features legends Paul McCartney and Ringo Starr of The Beatles, and singer/songwriter Carole King.<br/> <br />Starr and McCartney will accept a lifetime achievement award from the Recording Academy on behalf of The Beatles.<br/> <br />Other performers include Katy Perry, Metallica, Lorde and Robin Thicke.<br/> <br />The 56th Annual Grammy Awards will be handed out in Los Angeles on January 26.
