McConaughey's got his tight pants on in the Tonight Show sketch with Jimmy Fallon, following in Will Ferrell and Jennifer Lopez's white-booted footsteps.
"It's like a paid mom's vacation away," Mean Girls' Fey told her former "Weekend Update" co-anchor Jimmy Fallon, providing a very funny update on her Restless Leg Tour with Amy Poehler.
Dua Lipa returned Seth Meyers' "shacket" in a Late Night visit—this time, they kept it to just one shot (luged through a Barbie Dream House) and got matching tattoos.
The FNAF star described acting with his animatronic costars, and commented on that viral Josh Hutcherson whistle meme. "I had no idea it existed, and then my girlfriend posted it," he said.