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"The Croods" New York Premiere

NEW YORK, NY - MARCH 10: Actress Emma Stone attends "The Croods" premiere at AMC Loews Lincoln Square 13 theater on March 10, 2013 in New York City. (Photo by Neilson Barnard/Getty Images)

Celebrities Who've Officiated Weddings

Sir Ian McKellan has revealed that he'll soon officiate the nuptials of "X-Men" co-star Patrick Stewart. Check out some of the other stars, such as Emma Stone, Tori Spelling, and Jason Segel, who have helped couples tie the knot.