Credit: PATRICK HARBRON / THE CW ©2011

After kicking off the final stretch of Season 5 with lots of Dair bedroom action and vdW familial drama last week, the saga continues tonight with an all-new Gossip Girl ep: “It Girl, Interrupted.”

What kind of mind-rattling moments can we expect to see in tonight’s Episode 19? And can it top the image of Dan and Blair getting frisky in an elevator?! Here are the official deets:

Serena (Blake Lively) decides she is ready to relinquish the spotlight and sets out to make a reluctant Lola (guest star Ella Rae Peck) the next ‘It Girl’ of the Upper East Side, starting with modeling at a Kiki de Montparnasse lingerie show.  Meanwhile, Chuck (Ed Westwick) reaches out to Blair (Leighton Meester) for advice about his past, and Diana Payne (Hurley) return to The Spectator starts a power struggle with Nate (Chace Crawford).

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Credit: The Hollywood Reporter Photo: Sneak Peek! Gossip Girl Season 5, Episode 19, "It Girl, Interrupted": Blair Helps Serena (VIDEO)