Greg Gutfeld, host of Fox News' late-night show 'Gutfeld!,' reminds Jimmy Fallon they met years ago at a bar. Booze, smokes and mild violence were involved.

Greg Gutfeld made his first appearance on 'The Tonight Show with Jimmy Fallon,' where the pair largely avoided discussing the recent late night shake-up.

It's a late-night crossover few saw coming: Conservative comedian Greg Gutfeld made his debut appearance on "The Tonight Show" with Jimmy Fallon.

Jimmy Fallon hosted an unexpected guest on Thursday’s (August 7) episode of The Tonight Show as rival late-night host and Fox News favorite Greg Gutfeld joined him on the sofa.

Greg Gutfeld made his broadcast late-night debut on “The Tonight Show Starring Jimmy Fallon” Thursday evening, marking a rare network crossover with the Fox News host visiting NBC’s 30 Rock ...

Fox News' Greg Gutfeld and fellow late-night host Jimmy Fallon reminisced on "The Tonight Show" about their hilarious first encounter years ago.

It's a late-night crossover few saw coming: Conservative comedian Greg Gutfeld made his debut appearance on "The Tonight Show" with Jimmy Fallon.

Jimmy Fallon once grabbed a cigarette out of Greg Gutfeld’s mouth, crinkled it up and tossed it to the ground, hollering at the Fox News personality, “Those things will kill ...

The two late-night hosts were both “wasted” about 15 years ago when he and Fallon met for the first time at an illegal Hell’s Kitchen bar run by a mutual friend — one who looked like “a ...

Our favorite late-night moment of the week? Seth Meyers flatlining and being forced to rate the human-life experience at the gates of Heaven. Here’s what else we liked.