The way all the privleged prep school teens on Manhattan's Upper East side learn all the important news in their lives is from the blog of the all knowing albeit ultra-secretive Gossip girl. Gossip Girl was the first to report that Serena van derWoodsen, played by Blake Lively, is back in town. No one knows Gossip Girl's identity, but everyone in this exclusive and complicated vicious circle relies on her website and text messages for the lastest scoop.

Keeping track of the shifting friendships, jealousies and turmoil in this wealthy and complex world isn't easy, but it's what Gossip Girl does best.

Meet The Cast Of "Gossip Girl"

Blake Lively, plays Serena van der Woodsen. Lively has quickly become one of the most sought-after young actresses in Hollywood. She made her big-screen debute in Warner Bros.' "The Sisterhood of the Traveling Pants," for which she earned a "Breakthrough Performance" nomination at the "2005 Teen Choice Awards."

She graduated from high school last spring and resides in Los Angeles.

Leighton Meester, plays Blair Waldorf. Meester made her television debute when she was 13 on "Law & Order," she got her breakout role in 2004 with a recurring role as the Britney Spears-like singer Justin Chapin on the hit series "Entourage."

When not working on "Gossip Girl," Meester passionately pursues her talent for music and creative writing. She has recorded a song for the soundtrack of her upcoming film "Drive-Thru." She currently resides in New York.

Penn Badgley, plays Dan Humphrey. Badgley most rescently starred in Tom Fontana's "The Bedford Diaries." He also had a role along side Jesse Metcalfe and Brittany Snow in the comedy "John Tucker Must Die."

In his spare time, he enjoys surfing, soccer, skiing, snowboarding, singing, and playing the guitar.

Chace Crawford, plays Nate Archibald. Crawford starred in the 2006 movie "The Covenant," which opened at #1 in the box office.

Crawford splits his time between Los Angeles and New York City where "Gossip Girl" is being filmed.