With the holidays going on, Rockapella is pretty much all over the place. Just not in California. I'm not bitter.
Here they are on CBS2 in New York, singing "Santa Claus is Comin' to Town". Someone needs to tell JKB that the words are "rummy tum tums" and not "runny tum tums". Because the latter just sounds like a cute way of describing a stomach ailment. ;)