"Who came up with this? And what in the world is going on?" These are questions you'll only be able to entertain for about thirty seconds before submitting to Jimmy Kimmel's Lonely Island-ish video for "(I Wanna) Channing All Over Your Tatum." It's got extremely game cameos from Jamie Foxx, Gabourey Sidibe, and Olivia Munn. Kimmel steps in around the two-minute mark to try ruining the magic, but then rapping Channing Tatum keeps it alive. Also, Jamie Foxx's new name is 4 Chainz.