Actors Leonardo DiCaprio and John Malkovich walked away with top awards at this year's GQ Men of the Year ceremony.

Body of Lies star picked up the Leading Man Trophy, while Malkovich was named Mad Genius of the Year at the men's magazine awards ceremony in Los Angeles on Tuesday.

President-elect Barack Obama was given the nod as Game Changer of the Year, actor Jon Hamm was handed the Breakout award and Olympic champion Michael Phelps took home the ultimate accolade for Golden Boy of the Year.

The glittering party attracted some of Hollywood's brightest male stars, including DiCaprio, Zac Efron, Adam Brody and Aaron Eckhart.

And although the annual celebration recognizes leading men, the ladies were out in full force too, with Megan Fox, Rosario Dawson and Elisha Cuthbert turning out for the red carpet bash.

The main list of winners is as follows:

Leading Man: Leonardo DiCaprio
Game Changer: Barack Obama
Breakout: Jon Hamm
Golden Boy: Michael Phelps
Mad Genius of the Year: John Malkovich
Obsession of the Year: Megan Fox
Drama Queen of the Year: Sean Penn
Screen Idol of the Year: James Franco
Tough Guys of the Year: The Wire Writers
Mogul of the Year: Seth MacFarlane
Prick of the Year: Gordon Ramsay