Blake Lively and Penn Badgley by Giovanni Rufino/The CW
Dearly beloved, we are gathered here today for the wedding of Gossip Girl's (8 pm/ET, the CW) Lily van der Woodsen ( Kelly Rutherford) and Bart Bass ( Robert John Burke). And if you've been following this addictive Upper East Side story, you know the nups will be as OMG-inducing as the rest of the teen drama's freshman season.

"The wedding does happen," assures exec producer Stephanie Savage. "Just not without complications." Or glamour: The bride is wearing Vera Wang, the cake is from New York's baker extraordinaire Sylvia Weinstock and real-life socialite Lydia Hearst is on the episode's guest list.

But what of our favorite tortured teens? "It's a very emotional episode," Savage says. "There are makeups and breakups for the major couples." XOXOh-no!