Video: R.E.M.’s Michael Stipe pops up at 12-12-12 concert, ‘The Colbert Report’

R.E.M.’s Michael Stipe made a pair of high-profile public appearances last night, first popping up on “The Colbert Report.” to sing the Christmas carol “Good King Wenceslas” with Stephen Colbert and Mandy Patinkin, then joining Coldplay’s Chris Martin to perform “Losing My Religion” at 12-12-12: The Concert for Sandy Relief.