He’s not yet made an official announcement about his final show, but if Conan’s monologue last night didn’t tip you off (“Hi, I’m Conan O’ Brien and I’m three days away from the biggest drinking binge in historyâ€), his guest list strongly implies he won’t be back next Monday. Scheduled to appear on Friday is Will Ferrell, who was Conan’s first-ever Tonight Show guest last June. We suppose it’d probably be okay if he took off his pants this time. [HR]