Britney Spears wasn't the only one with a hot party last night -- because Maxim magazine threw their annual Hot 100 bash on Wednesday, where Rosie Huntington-Whiteley made it clear she was #1.

Stepping out in a sexy white, cut-out dress, the "Transformers: Dark of the Moon" star looked gorgeous next to the movie's director Michael Bay. Her celeb boyfriend, Jason Statham, was nowhere in sight.

Other sexy stars in attendance included Joe Jonas, who took photos with Olivia Munn, Keri Hilson, Joanna Krupa, Kelly Rowland and Amber Rose.

Check out all the party pics!

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