Who would’ve thought we’d ever see Conan O’Brien back at NBC? Well, that’s exactly what happened last night when O’Brien popped in to visit Jimmy Fallon on ‘Late Night,’ the show he hosted for 16 years. 

After the awkward circumstances surrounding O’Brien’s departure from NBC, you’d think it would be years before he came back. But there he was bantering with his replacement Jimmy Fallon like the pro that he is. (There’s also the matter of retrieving an old ‘Late Night’ favorite that he left behind).

Conan will bringing his TBS series to the Big Apple later this month. Check out the late night hero’s triumphant return to NBC below.