Celebrities like Jon Hamm [1], Kerry Washington [2], and Rose Byrne have teamed up with the White House to join the fight against sexual assault, starring in a brand-new PSA for the "It's On Us" campaign [3]. The video and the campaign are aimed at ending sexual assault, particularly on college campuses. It echoes the ideas that were featured in the White House's "1 is 2 Many" PSA [4] video, which Daniel Craig [5] and Steve Carell [6] appeared in this past Spring. Student leaders from about 200 colleges [7] across the country are participating in the "It's on Us" campaign, and on Friday, President Barack Obama and Vice President Joe Biden [8] are holding a launch event at the White House. Watch the full video above, which also features cameos from Questlove, Connie Britton, and more.