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...and it wasn't her boyfriend Matt Bellamy who was on the receiving end!

Kate Hudson was one of the many lovely ladies who attended ELLE Magazine's Women in Hollywood tribute last night, and the Oscar nominated actress was snapped smooching a mystery man as she left the bash. We're not too concerned that she's stepping out on Matt because he accompanied her to the event, and Kate seems like the kind of sweetheart who kisses everyone hello and goodbye. Smooch smooch!

Click the gallery below to see the rest of the famous females who attended the event!