UPDATE January 22, 12:10 PM: "We don't know why Beyoncé decided to use prerecorded music," a spokesperson for the Marine Corps Band told us this morning. "All music [for inaugural ceremonies] is prerecorded as a matter of course, and that's something we've done for years and years. The Marine Band did perform live throughout the ceremony but we received last-minute word that Beyoncé wanted to use the recording." The spokesperson also added that everyone knows Beyoncé is a gifted singer, and her decision has no bearing on her musical ability.