Ashley Greene & Other Young Stars Come Together As One

To celebrate World AIDS Day 2009 tomorrow, The Twilight Saga: New Moon star, Ashley Greene, teamed up with other sexy young film and television stars to film a PSA for the Coming Together as One campaign.

Fellow on-screen vamps, Kellan Lutz, Nikki Reed and Jackson Rathbone, joined Greene along with Gossip Girl stars, Leighton Meester, Ed Westwick and Jessica Szohr to film the video.

In addition, fellow CW star Tristan Wilds of 90210 fame was also featured in the piece, as well as Hayden Panettiere from Heroes, John Cho from FlashForward and Star Trek and Corbin Bleu from High School Musical.

The goal of the organization is to raise awareness among young people to motivate them to combat preventable diseases such as malaria, AIDS and TB as well as poverty worldwide.

Watch the PSA for the Coming Together as One campaign after the jump.

Gallery Info: Ashley Greene leaves the Maxim December issue cover party.