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In New York, the effort to provide help to those affected by Hurricane Sandy continues—and the stars are on board. TAG Heuer brand ambassadors Cameron Diaz and Leonardo DiCaprio attended the watch company’s A Night Under the Stars gala benefiting New York Cares’s Sandy Relief Effort and gender equality organization United Nations Women. The InStyle cover girl played host for the evening’s festivities, and Leo helped launched the brand’s limited-edition LINK timepiece during the event. Click through the gallery to see more photos from this weekend’s star-studded shindigs!