"It's always a crazy, fun show, and I can't wait to be right in the middle of the action," the 25-year-old actress said Monday in a statement to The Associated Press.
Alba is nominated for three golden popcorn trophies — sexiest performance for "Sin City" and best hero and best on-screen team with Michael Chiklis, Chris Evans and Ioan Gruffudd for "Fantastic Four."
The 2006 MTV Movie Awards will be filmed June 3 at Sony Picture Studios in Culver City, Calif. The show will air June 8 (9 p.m. EDT).
Alba, who starred in the TV series "Dark Angel," appears opposite Hayden Christensen in the upcoming film "Awake," a psychological thriller.