'Gossip Girl' Season 4 pics: Sacre Blair! -- plus Katie Cassidy

By Andrea Reiher

August 26, 2010 6:59 PM ET

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"Gossip Girl" is heading to Paris for its first couple Season 4 episodes. If you can't wait to see Serena and Blair cavorting through the streets of gay Paree in the premiere, we've got a few pics to whet your whistle -- plus Katie Cassidy when she makes an appearance in the second episode.

The first episode of Season 4 is titled "Bells du Jour." Will the way Blair and Chuck spent their summers bring them closer or drive them apart? And is Serena ready for her first day at Brown?

In the second episode, titled "Double Identity," Chuck's relationship with Eva (Clemence Poesy) is explained further and Katie Cassidy's Juliet Sharp makes her first appearance. Juliet will be a new love interest for Nate Archibald.

"Gossip Girl's" Season 4 premiere is Monday, Sept. 13 at 9 p.m. ET on the CW. Check out all the Season 4 pictures here.