Jessica Alba scooped a sexiest performance trophy for her sizzling role in Sin City at this year’s MTV Movie Awards ceremony in California, which she also hosted.

MTV 2006 Movie Awards complete list of winners:
Best Performance : Jake Gyllenhaal, 'Brokeback Mountain'
Best Comedic Performance : Steve Carell, 'The 40-Year Old Virgin'
Best On-Screen Team : Vince Vaughn & Owen Wilson, 'Wedding Crashers'
Best Villain : Hayden Christensen, 'Star Wars: Episode III - Revenge of the Sith'
Breakthrough Performance : Isla Fisher, 'Wedding Crashers'
Best Hero : Christian Bale, 'Batman Begins'
Best Fight : Angelina Jolie vs. Brad Pitt, 'Mr. & Mrs. Smith'
Best Kiss : Jake Gyllenhaal & Heath Ledger, 'Brokeback Mountain'
Best Frightened Performance : Jennifer Carpenter, 'The Exorcism of Emily Rose'