You can watch A$AP Rocky, A-Trak and AraabMuzik performing "Long.Live.A$AP" and "Wild For The Night" on last night's episode of The Late Show with David Letterman in the replies.
Rock Kills Kid has been forced to cancel their show on Monday because they will be filming a performance for David Letterman. The performance will air this Friday; check your local listings for show times.
YouTube.com was kind enough to post a video stream of Imogen Heap's performance of "Goodnigt And Go" from her performance on David Letterman the other night.
Fall Out Boy will be appearing on Letterman this Monday, January 2nd at 11:30pm EST/PT. The band will also be performing on MTV's 14th annual New Year's Eve broadcast at 10:30pm EST tomorrow.