You probably thought we were done with the blockbuster 2009 Video Music Award announcements. After all, we'd already hit you with news that [article id="1619684"]Beyoncé[/article], [article id="1618558"]Jay-Z, Lady Gaga[/article] and [article id="1616201"]Taylor Swift[/article] would be performing live at the at the September 13 show. But guess what? We're about to drop a pop-culture bomb of OME proportions.

"Twilight" stars [movieperson id="365131"]Robert Pattinson[/movieperson], [movieperson id="262629"]Kristen Stewart[/movieperson] and [movieperson id="373803"]Taylor Lautner[/movieperson] will appear on the show to debut an exclusive expanded trailer for "New Moon," the second film in Summit Entertainment's vampire saga.

We'll repeat that slowly for you: Fresh [movie id="414921"]"New Moon"[/movie] footage. Pattinson. Stewart. Lautner. Boom!

The film's first trailer premiered during this year's [article id="1613071"]MTV Movie Awards[/article], and now the 26th annual VMAs are shaping up to be another bonanza for devoted Twilighters. On the day of the show, MTV.com will debut the first single off the "New Moon" soundtrack, the [article id="1619688"]Death Cab for Cutie tune "Meet Me on the Equinox."[/article] Based the second book in Stephenie Meyer's supernatural series, "New Moon" is set for release on November 20, while the soundtrack drops on October 20.

Airing at 9 p.m. on September 13, the Russell Brand-hosted VMAs will pit [artist id="3061469"]Lady Gaga[/artist] against [artist id="1236911"]Beyoncé[/artist], as each pop star has nabbed nine nominations, including nods for Video of the Year and Best Female Video. [artist id="501686"]Britney Spears[/artist] has garnered seven nominations for her "Womanizer" and "Circus" clips in categories like Video of the Year and Best Pop Video. Kanye West, Eminem and Coldplay received four nominations each.

Additional performers include Green Day, Pink and Muse. Among the evening's presenters are Katy Perry, Nelly Furtado, Leighton Meester, Chace Crawford, Ne-Yo and Miranda Cosgrove.

The 2009 MTV Video Music Awards will take place September 13 at 9 p.m. ET. Additional celebrity presenters and performers will be announced in the coming weeks. To be the first to find out the inside scoop, follow the Inside MTV Twitter account at Twitter.com/InsideMTV.

Check out everything we've got on "The Twilight Saga: New Moon."