Jack Johnson and The Roots have teamed up to record a reworked version of Christmas classic Rudolph the Red-Nosed Reindeer for charity. The group's performance of the popular tune from U.S. show Late Night with Jimmy Fallon, during which Johnson and his one-off backing band all wore matching red Christmas sweaters, is now available to download on iTunes - and all proceeds will benefit the Red Cross typhoon relief effort in the Philippines.