On the December 20 episode of Live with Kelly, comedian and Broadway star John Mulaney co-hosted the morning talk show with Kelly Ripa. He has written for Saturday Night Live, Maya & Marty, and Documentary Now! Mulaney currently stars in Oh, Hello on Broadway with his comedy partner, Nick Kroll, as his alter-ego, Upper West Side alta-cocker George St. Geegland. (Kroll plays Gil Faizon, charmed I’m sure.)

The 90-minute comedy takes its cue from The Oh, Hello Show, a comedy act created by the duo and popularized on the Kroll Show on Comedy Central. The Broadway version includes their prank sketch “Too Much Tuna,” in which George and Gil call upon a celebrity in the audience to join them onstage—their intention to get the celebrity to look at the sandwich on the dinner table and say, “That’s too much tuna.”

As Mulaney told Ripa, celebrities like Tina Fey, Stephen Colbert, and Conan O’Brien have all participated.

As for why Mulaney and Kroll wanted to bring George and Gil to the Lyceum Theatre: “We love the Upper West Side, it’s the coffee breath of neighborhoods,” he quipped, “and we love old guys from New York because they’re certain about everything.

“These are two old men who, they’re obsessed with Alan Alda, they think he’s the height of bachelorhood,” he continued. “They’re now on a Broadway stage—which they have no business being on—and they feel totally at home. You know those guys who whatever would happen to them they’re like, ‘This is absolutely what should happen to us’? They’re like so comfortable on Broadway. So this is a little peek into their cable access show.”