Hollywood heartthrob Bradley took the British model along as his date to the event on Saturday, and the pair seemed to be getting on like a house on fire.
Dressed down in jeans and a leather jacket, Suki Waterhouse hung out backstage, as Bradley Cooper took to the stage to present an award.
Doting Brad even introduced his new leading lady to co-star Amy Adams and Jennifer Aniston during the evening.
The couple's outing comes after it was rumoured they had ended their whirlwind romance.
Earlier this year, the model's former-flame Miles Kane wished Bradley Cooper and Suki Waterhouse all the best.
The Liverpudlian rocker seemed not to hold any grudges after his ex-girlfriend hooked up with the Hollywood hot star, revealing he wishes the new couple 'all the best'.
'The thing is, she is a 21-year-old girl and you forget how young she is,' the Last Of The Shadow Puppets frontman told the Sun.
'I don’t know how old he is — what, 40 or something like that? She is a young girl and I’m sure he’ll realise that.
Bradley Cooper and Suki Waterhouse reportedly began dating after the met at an awards ceremony earlier this year.
The British model is thought to have been spending time with Bradley in Boston, during filming breaks from his upcoming flick, the Hangover 3.
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