That band I really like, MGMT, is playing the Jimmy Fallon show's tribute to Pink Floyd Wednesday night. MGMT, Pearl Jam, the Foo Fighters, Dierks Bentley, and the Shins are each playing a Pink Floyd tune one night this week. MGMT will perform "Lucifer Sam" off the "Piper at the Gates of Dawn" album. There may be costumes involved. Should be fun.