Kristen Stewart, Ashley Greene and Nikki Reed is among the stars just added to Scream 2010.

Robert Pattinson will NOT be at the show.

She’ll be joined by Megan Fox, Alexander Skarsgard, Mickey Rourke, Chris Hemsworth Marilyn Manson, in addition to previously announced celebs like Sigourney Weaver Aaron Eckhart. and and

There will also be a tribute to the end of “Lost,” the premiere of footage from Scream 4, a 25th-anniversary celebration of Back to the Future, and a musical performance by M.I.A.

The event airs on Spike TV on Tuesday, October 19.

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