Ashton Kutcher, Wilmer Valderrama, And Dax Shepard Join In On The Ice Bucket Challenge Because one celebrity is so close to none. Allison Bagg Video Curator 1. Topher Grace challenged his That 70s Show costars to the ALS ice bucket challenge a few days ago and they responded right away with this video. Best part? You can totally hear Mila Kunis laughing behind the camera. Video available at: http://www.youtube.com/v/I_YChPGQels. Via youtube.com 2. Celebrity wet t-shirt contest, y’all. 3. But wait! Suddenly a wild Dax Shepard appears out of nowhere and accepts the challenge as well. Way to go you guys. View this image › Via youtube.com 4. Looks like Ashton didn’t get Charlie Sheen’s memo to pour 10K over himself instead of ice water. Oh well. Video available at: http://youtube.com/watch?v=qat9gR5nrpM. Via youtube.com Check out more articles on BuzzFeed.com! More News About Mila Kunis, Ashton Kutcher, Dax Shepard More ▾ Facebook Conversations Can your pet compete? Find out now. Get BuzzFeed's Cute or Not app! Get the App!