Ever since last week's episode of "The Office," [0] I've been wondering who took Michael up on his invitation to Sandals Jamaica after his girlfriend dumped him. Now, NBC has started airing a promo that might answer my question. In the clip, Pam points to a computer screen and says "Oh my god! Is that Jan?" Then a picture of a topless blonde on a lounge chair flashes onto the screen as Michael protests. If you missed it the first time, the one-hour holiday special airs again tonight [0]. To find out who the mystery woman is, you'll have to wait until "The Office" comes back Jan. 4.