VIDEO : Gwyneth Paltrow Can't Stop Smiling

Rihanna, Miley Cyrus and Lea Michele were all at the amfAR inspiration gala in LA but all eyes were on Gwyneth Paltrow who was the host for the evening. The blonde beauty was flashing her pearly whites to the cameras which had people presuming that she was all smiles due to her ex hubby Chris Martin reportedly splitting up with actress Jennifer Lawrence.