My Morning Jacket (featuring Jim James and some crazy jacket he found somewhere) stopped by 'Conan' to perform a track from their latest album, 'The Waterfall.'
The New Basement Tapes — a supergroup featuring rock icon Elvis Costello, Jim James of My Morning Jacket and Marcus Mumford of Mumford and Sons — performed together in public for the first time last night on 'The Tonight Show Starring Jimmy Fallon.'
Considering that Elvis Costello, Jim James of My Morning Jacket and Marcus Mumford of Mumford & Sons are in the band, they probably don't need all that much rehearsal.