The 39-year-old actor was joined by his 22-year-old model girlfriend Suki Waterhouse and in case you were wondering, they're still loved up.
But Brad and Suki weren't the only stylish A-listers at the event. They rubbed shoulders with Pharrell Williams (who looked dapper in a Brioni jacket paired with his his signature head gear), Keira Knightley and her husband James Righton, Alexa Chung, Cara Delevingne, Princess Beatrice, Lily Allen and Naomi Campbell.
While all eyes were on Bradley and Suki - it was Alexa, Keira and Cara who pulled out all the sartorial stops. Alexa and Cara both opted for classic black - Cara chose a floor-length design by Mulberry but in true 'It Girl' style, Alexa wore her dress with flats and a sexy red lip (she's still doing the ombre hair thing too.)Keira also looked stunning in a multi-coloured floral applique dress by Chanel complete with pleated sheer skirt and metallic heels. Hands down, this is one of her best party looks yet.
As for Naomi Campbell and Gemma Arterton's statement-making ensembles? Let's just say these ladies know exactly how to master the art of a sexy red two-piece.