VIDEO: The CW Cast Guess GOSSIP GIRL's True Identity!

Check out the video below in which the cast of The CW's GOSSIP GIRL share who they think Gossip Girl really is! Catch the season premiere Monday at 9/8c on The CW.

Six years after the first Gossip Girl blast rocked the Upper East Side and viewers at home, GOSSIP GIRL, a one-hour drama about the scandalous lives of Manhattan's elite, executive produced by Josh Schwartz (Chuck, The O.C.), Stephanie Savage (The O.C.), Sara Goodman, Bob Levy and Les Morgenstein, returns for an unforgettable final season.

Season six opens with the Upper East Siders working together to find one of their own. Serena has gone off the grid, beyond even the reach of Gossip Girl. Her friends fear for the worst and hope for the best, but even they can't imagine where they will ultimately find her. Meanwhile, Blair has offered Chuck her heart, but is her love enough to help him win back his empire? Lonely Boy Dan has written a new book that promises to make even more trouble than the first, and this time he has no desire to remain anonymous. Nate is determined to finally reveal the true identity of Gossip Girl, thereby making a name for The Spectator, and himself. Lily and Rufus turn on one another when Rufus makes a surprising new ally who threatens Lily and her family.

Anywhere else it would be too much drama to handle, but this is the Upper East Side. And when Bart Bass, Jack Bass and Georgina Sparks show up to raise hell, it's a fight to the spectacular series finale. Who comes out on top? That's one secret I'll never tell... xoxo, Gossip Girl. The series stars Blake Lively as Serena van der Woodsen, Leighton Meester as Blair Waldorf, Penn Badgley as Dan Humphrey, Chace Crawford as Nate Archibald, Ed Westwick as Chuck Bass, Kaylee Defer as Charlie Rhodes, Kelly Rutherford as Lily van der Woodsen and Matthew Settle as Rufus Humphrey. Filmed in New York and based on the popular series of young-adult novels by Cecily von Ziegesar, GOSSIP GIRL is from Fake Empire and Alloy Entertainment in association with Warner Bros. Television and CBS Television Studios with executive producers Josh Schwartz ("Chuck," "The O.C."), Stephanie Savage ("The O.C."), Leslie Morgenstein ("The Vampire Diaries"), Bob Levy ("The Vampire Diaries") and Sara Goodman ("Reunion").