12:24pm PT by Philiana Ng
Conan O'Brien Returns to His Old 'Late Night' Studio in New York (Video)
Conan O'Brien returned to his old stomping grounds last night on NBC's Late Night With Jimmy Fallon -- and he reunited with an old friend.
O'Brien, who left NBC last year after less than 12 months as Tonight Show host, dropped by Jimmy Fallon's late-night show, who films in his old studio in New York City. He will be in town doing some shows from the Beacon Theater.
Fallon was discussing the fall weather, when O'Brien made a surprise appearance. "How you doin'?," O'Brien said to Fallon, who said, "This is unbelievable."
"I was back in New York and I wanted to check out my old studio. Hey Max!" O'Brien joked, pointing to Questlove, drummer for The Roots. "Hair looks amazing, man." (He was referring to his Late Night/Tonight Show counterpart, Max Weinberg, who is not on TBS' Conan.)
"You were here for 16 years. Then ... what happened?," Fallon asked. The two began to laugh. "Don't you worry about, you're a young guy," O'Brien joked.
"I left something here, something important to me. ... I think I'm going to need it again," he said, before revealing Triumph the Insult Comic Dog.
Watch the rest of O'Brien's appearance on Late Night below: