Where better to make a red carpet debut than the Met Gala? Sarah Silverman and Michael Sheen took things to the next level—Hollywood-style, that is—when they attended Monday’s ball in New York City. The A Million Ways to Die in the West star knocked it out of the park in a voluminous Zac Posen gown, while the Masters of Sex actor suited up in Prada. Silverman, 43, and Sheen, 45, began dating in February.