Amy Poehler, Emma StoneLouis Burgis/Startraksphoto

Emma Stone (in Calvin Klein) and Amy Poehler clowned around for a good cause at the 7th annual Worldwide Orphans Foundation benefit gala, held at Cipriani Wall Street in New York City. The spectacles mimicked those of Dr. Jane Aronson, founder of the non-profit. Click through to see Kristen Stewart, Olivia Wilde and more stars at last night’s hottest parties!