Last night on The Tonight Show With Jay Leno, Jay Leno torches Kim Kardashian's gargantuan 20.5-carat diamond engagement ring to see if it's real. And, ooh, it burns! Yet, Kim K. just laughs along. Also, Ryan Reynolds endures "borderline sexual harassment" during the making of Green Lantern. No, not by a stalker fan, but a massive stuntman who decides to go commando; Curb Your Enthusiasm co-star Jeff Garlin calls Poison Control because he has caulk in his mouth (and in insider info, we find out that Garlin had recommended Andy Richter to be Conan's sidekick); and Jimmy Kimmel fist-bumps an unsuspecting Duchess of York. Watch our compilation to see what you missed.