The CW Network's highly anticipated new drama Gossip Girl will make its debut on Wednesday, September 19 (9:00-10:00 p.m. ET), one week earlier than previously announced, it was announced today by Dawn Ostroff, President, Entertainment, The CW.

Following the premiere of America's Next Top Model, Gossip Girl comes from The O.C. producers Josh Schwartz and Stephanie Savage and based on the New York Times best-selling young-adult book series of the same name. The show features an ensemble cast of new and veteran actors, including Blake Lively (The Sisterhood of the Traveling Pants) and Leighton Meester (Surface), and focuses on the struggle for social supremacy among teens from both sides of the tracks in a posh Manhattan prep school.

To accommodate this new premiere schedule, America's Next Top Model will have a one-hour premiere on September 19 (8:00-9:00 p.m. ET).

On Sunday, September 23, following the premieres of CW Now (7:00-7:30 p.m. ET) and Online Nation (7:30-8:00 p.m. ET), The CW presents special encores of the America's Next Top Model (8:00-9:00 p.m. ET) and Gossip Girl (9:00-10:00 p.m. ET) premiere episodes.

Wednesday, September 19

8:00-9:00 p.m. : America's Next Top Model (Premiere)

9:00-10:00 p.m. : Gossip Girl (Premiere)

Sunday, September 23

7:00-7:30 p.m. : CW Now (Premiere)

7:30-8:00 p.m. : Online Nation (Premiere)

8:00-9:00 p.m. : America's Next Top Model (Encore)

9:00-10:00 p.m. : Gossip Girl (Encore)