Isaiah Mustafa is back in what looks to be a major holiday YouTube campaign from Wieden + Kennedy for Old Spice. The concept is introduced in the first video below, in which Isaiah is "MANta Claus," promising to buy gifts for all 7 billion people on Earth—one at a time. He begins with Twitter's @beautyjunkies, whom he gives "an elegant pair of ladyshoes made out of necklaces." ("OMG, I CAN DIE NOW," @beautyjunkies quickly replied on Twitter.) Stay tuned—this could get festive. UPDATE: He's now posted three more videos—one to 25 of his closest Internet friends, one to the city of Baltimore (tied to a related full-page ad in Tuesday's Baltimore Sun), and one to the country of Australia. See those after the jump, and keep up with MANta Claus over on Old Spice's YouTube page.