Despite not really having anything to promote, Louis C.K. was the only guest on Conan last night. After recently celebrating the twentieth anniversary of the premiere of Conan’s turn as host of Late Night, C.K. came on to reminisce about the old days. It’s cute. They talk about a joke Louis bullied Conan into doing and his failed attempt at hitting on Gwyneth Paltrow. Then he does some regular late-night couch bits on how easy acting is and texting. It was last night’s funniest hour of redheaded comedy.