America’s good girl has gone bad.
Picking up the first trophy of the night at Sunday’s MTV Movie Awards, Jennifer Aniston was crowned Best On-screen Dirtbag for her role in Horrible Bosses.
Rocking a one-shouldered leather dress, the Hollywood beauty headed up on stage to accept the award for her performance as sex-crazed dentist Julia Harris in the comedy.
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She managed to beat competition from co-star Colin Farrell to become the first person to take the title, introduced this year to celebrate the silver screen’s deliciously despicable characters.
Other nominees included Jon Hamm in Bridesmaids, Bryce Dallas Howard in The Help and Oliver Cooper in Project X.
Triumphantly raising her trophy, delighted Jen told the crowd: "Do you know how long I have tried to have somebody let me unleash my on-screen dirtbag? A really long time!
"And thank god this category just popped up.
"So I would like to say thank you to the television show Friends for letting me unleash the inner sweetheart, and here’s to (director) Seth Gordon for allowing me to be a dirtbag."
It was a big night for hit film The Hunger Games.
Star Jennifer Lawrence, 22, won the prestigious Best Female Performance award – accepted via a video link – and her co-star Josh Hutcherson was named Best Male.
The duo also scooped the best fight trophy, presented by Charlize Theron and Michael Fassbender who came to blows before announcing the winner (pictured), while Elizabeth Banks, who plays Effie Trinket, won Best On-Screen Transformation.
The movie did miss out on the best film award though, which went to Twilight for the fourth year in a row.
Hollywood heavyweight Johnny Depp was presented with the special Generation Award at the ceremony.
Clearly touched, he could be seen mouthing the word 'Wow' before joking with the crowd: "This is like the 'get out of the business' award!"
MTV Movie Awards 2012 - the winners
- Movie of the Year: The Twilight Saga: Breaking Dawn Part 1
- Best Female Performance: Jennifer Lawrence, The Hunger Games
- Best Male Performance: Josh Hutcherson, The Hunger Games
- Best Fight: Jennifer Lawrence and Josh Hutcherson vs Alexander Ludwig, The Hunger Games
- Best Kiss: Kristen Stewart and Robert Pattinson, The Twilight Saga, Breaking Dawn
- Best On-screen Dirtbag: Jennifer Aniston, Horrible Bosses
- Best Hero: Daniel Radcliffe, Harry Potter and the Dealthy Hallows: Part 2
- Best Gut-wrenching Performance: Kristen Wiig, Maya Rudolph, Rose Byrne, Melissa McCarthy, Wendi McLendon-Covey and Ellie Kemper, Bridesmaids
- Best Comedic Performance: Melissa McCarthy, Bridesmaids
- Best On-screen Tranformation: Elizabeth Banks, The Hunger Games
- Best Cast: Harry Potter and the Deathly Hallows: Part 2 - Daniel Radcliffe, Emma Watson, Rupert Grint and Tom Felton
- Breakthrough Performance: Shailene Woodley, The Descendants
- Best True Trailblazer: Emma Stone
- Best Music: Party Rock Anthem, LMFAO, 21 Jump Street
- Generation Award: Johnny Depp