Jimmy Fallon

Barb from Netflix show 'Stranger Things' returned from The Upside-Down in a 'Tonight Show' spoof starring the real kids from the cast.

Weebles may not fall over, but in May, Trainor went DOWN.

It's like slip n' slide... with booze.

What makes a good Sia impression according to Celine? A little rasp and a whole lot of hair, apparently!

Madge whipped out a classic for 'The Tonight Show Starring Jimmy Fallon' — and then insisted on the late night TV host to push her right off the stage.

The Queen of Pop is set to appear for a special performance, and President Barack Obama will be making his 'Fallon' debut. What's about to go down?

If you thought your double-chin/cross-eyed combo was dizzying...

While playing a voice-altering karaoke game on 'The Tonight Show,' Amy Adams proved she can "Work" like RiRi.

Demi expertly took on Cher, Christina Aguilera, and Fetty Wap as Jimmy fought back with his best Louis Armstrong and Dave Matthews.

Jimmy Fallon is back as Sara "with no H because H's are Ew!" and Jennifer Lopez plays Gabby who finds out her dad is on Snapchat. Ew!

Kristen Wiig does her best-worst Peyton Manning impression on The Tonight Show plus more moments in late night TV last night.

Back in those optimistic days of 2015, SNL made a trumpeting announcement that Taran Killam would succeed series vet Darrell Hammond under Donald Trump’s famous hair, though the impression seemed to have been retired with the presidential candidate’s actual hosting. Hammond has resumed the role ever since, with Killam shifting into the role of Texas senator Ted Cruz, though it seems SNL had in mind to tap Jimmy Fallon’s Trump impression in December, before returning the role to Hammond.