As Gil Faizon and George St. Geegland are about to take on Broadway, their real life counterparts Nick Kroll and John Mulaney went on The Tonight Show and explained to Jimmy Fallon and the rest of the country what’s at the core of both Faizon and St. Geegland and why they’re doing Oh, Hello.

Of course, Kroll and Mulaney have fun with it, especially in NBC Experience Store attire.