By Alexis Tereszcuk - Radar Senior Reporter
"I think this is the coolest thing I've ever done in my life," Kristen gushed while flanked by her two leading men.
The 21-yar-old sparkled in a Marios Schwab beaded cocktail dress, hot off the runway of the designer's Spring 2012 show.
Her on-screen and real life boyfriend Rob Pattinson had the girls screaming as he spoke.
"This is incredibly scary," the 25-year-old, who plays vampire Edward Cullen said. "I forgot how hot L.A. was. I shouldn't have worn a suit," which prompted the girls in the crowd to shout "Take it off!"
Taylor Lautner told the crowd that the day was surreal. "This is like a dream. It is such an honor, thank you everyone."
Then the three signed the cement and put their handprints in, forever leaving their imprints on the world.
The Twilight Saga: Breaking Dawn Part I hits theaters on November 18.