Gossip Girl's season four finale is almost here! Serena (at left in a Mara Hoffman bathing suit, Stephen Dweck necklace and Bottega Veneta bag) skips town to hit the beach. Could her getaway have something to do with bad girl Georgina Sparks' return? Meanwhile, Vanessa comes back for her last episode as a series regular! Tune in on Monday, May 16th to get your weekly dose of drama and click through the gallery to see more looks from the episode!