Live' veterans participated in a "Tonight Show Joke Off," a riff on SNL's "Weekend Update" segment during which they battled it out for the best punchlines.

Tina Fey, Amy Poehler, and Seth Meyers appeared on 'The Tonight Show' alongside host Jimmy Fallon ahead of the 'SNL50' anniversary special.

Tina Fey, Amy Poehler and Seth Meyers interrupt Jimmy's monologue and challenge him to a joke-off. We know what you’re probably thinking: “Here we go again!” Because it seems like the mom shamers and internet trolls love nothing more than to tear Chrissy Teigen down.

It was like a "Weekend Update" reunion when Tina Fey, Amy Poehler, and Seth Meyers crashed Jimmy Fallon's February 12 opening monologue on The Tonight Show. Like a late night Justice League, the comedy legends joined forces for a "good old-fashioned" Tonight Show Joke Off.