Festivities at Staples Center in Los Angeles honor excellence in the recording industry, James Corden hosts; scheduled performers include John Legend, Metallica, Carrie Underwood Festivities at Staples Center in Los Angeles honor excellence in the recording industry, James Corden hosts; scheduled performers include John Legend, Metallica, Carrie Underwood, Keith Urban, Adele, and Bruno Mars.第59届格莱美奖颁奖典礼详情