Last night on the Tonight Show, X-Factor’s Simon Cowell used his mother as a proxy to dis his American Idol replacement, Stephen Colbert found out how many Mardi Gras beads it takes to get a look at Harry Connick Jr.’s goods, Chelsea Handler decided Conan was the perfect place to continue her crusade against redheads, and Mike Tyson showed Jimmy Fallon that he still knows how to fight dirty in the ring. Watch our compilation to see what you missed.
