Last night on Conan, the host shocked a staffer with his Secret Santa present: Jon Hamm, ready with a re-stocking of One-A-Day Women’s vitamins and all. Plus: Jay Leno called Jonah Hill out on his bluff — and made for one of the most graceless dance pairs ever; Jerry O’Connell portrayed the perfect frat boy, chugging an extra-large glass of beer and capping it with a proud belch; and Kathy Griffin makes Anderson Cooper sweat like no one else can. Watch our compilation to see what you missed.