TV Exclusive: Watch Darren Criss Get Served Too Much Tuna at OH, HELLO!

OH, HELLO has already welcomed a slew of surprise guests, who join Gil Faizon (Nick Kroll) and George St Geegland (John Mulaney) every night for their cable-access show, "Too Much Tuna." Recent guests have included Will Ferrell, Tina Fey, Stephen Colbert, Alan Alda, F. Murray Abraham, Jason Sudeikis, Seth Meyers, Aziz Ansari, Cuba Gooding, Jr., Whoopi Goldberg, John Oliver, Jason Alexander, Geraldo Rivera, Edie Falco, Andrew Rannells, Jesse Eisenberg, Josh Groban, Conan O'Brien, Martin Short, Ralph Macchio, Ben Stiller, Fred Armisen, and The Apatow Family.

Below, watch as Darren Criss, who will soon host NBC's HAIRSPRAY LIVE!, stops by for his fill.

Respectively, the duo star as Gil Faizon and George St. Geegland - outrageously opinionated, 70-something, native New Yorkers that Kroll and Mulaney first began performing on the alternative comedy stages in NYC. Honed for over a decade, the fictional duo garnered a cult following and found their way onto a Comedy Central special, viral videos and late night couches everywhere. Oh, Hello on Broadway is Gil and George's "memoir for the stage" - a laugh-a-minute two-man tour-de-force that's part scripted, part spontaneous comedy, and totally unprecedented.