Gossip Girl IV (6)

Although Blair made it perfectly clear that Little J was no longer welcome in Manhattan after what happened with Chuck, Jenny is tempted by a once-in-a-lifetime opportunity to meet Tim Gunn (guest star TIM GUNN -- Project Runway), which could be a game changer for her future. Meanwhile, Serena discovers something about her new boyfriend, Colin (guest star SAM PAGE -- Mad Men, Desperate Housewives, Shark), that may put an end to their relationship just as it was getting good.