grammys

Justin Timberlake and Jay-Z perform onstage at the 55th Annual Grammy Awards at the Staples Center, Feb. 10, 2013 in Los Angeles, California. PICTURE GROUP/Frank Micelotta.

Justin Timberlake and Jay-Z perform onstage at the 55th Annual Grammy Awards at the Staples Center, Feb. 10, 2013 in Los Angeles, California. PICTURE GROUP/Frank Micelotta.