Jon Stewart crashes an interview with the kid who had a Jimmy Kimmel-themed bar mitzvah

Last night, Jimmy Kimmel welcomed an unexpected guest on his show — so unexpected, in fact, he crashed an interview with his entrance, before ripping into the Jimmy Kimmel Live host on his very own stage.

It was all good fun, though; the surprise guest was none other than former Daily Show host Jon Stewart, who had to interrupt Kimmel’s interview with 13-year-old Will Rubin, who recently had a Jimmy Kimmel-themed bar mitzvah to argue: “Wouldn’t you rather idolize a talk show host that is also circumcised?”

Stewart’s guest spot totally stole the show, and Kimmel totally didn’t mind the roasting (which included the warning: “Don’t be fooled by his learned looking beard and his puffy sad eyes – he’s not rabbinical, he’s just unhealthy”) — plus, Rubin got to meet two of his idols, which is pretty much the best bar mitzvah gift ever.