The 'SNL' alum also discussed struggling to convince execs to let The Roots be his house band.
"The more I think about it, he only likes one person."
The boys of BTS proved once again they're phenomenal performers, as they took on the late night host.
The K-pop superstars played a hilarious dance game on Tuesday's 'Tonight Show.'
ET spoke with Clarkson at day 2 of the 2018 iHeartRadio Music Festival in Las Vegas.
The cookbook author and host appeared on 'The Tonight Show' on Friday.
The 'Night School' star was not having any of it when the nature expert started bringing out snakes and tarantulas.
'The Voice' coach couldn't contain her excitement when sharing the news with Jimmy Fallon on 'The Tonight Show.'
The 'What Do You Mean' singer and the TV host donned cheap disguises and danced the day away in NYC in a new 'Tonight Show' sketch.
'If you’re having Quidditch problems, I feel bad for you son. I got 99 problems but a snitch ain’t one.'
The music legend joined Jimmy Fallon on Thursday's 'Tonight Show' for a delightful prank inside 30 Rockefeller Plaza.
The 'Peppermint' star told the terrifying (but also, hilarious!) story on Wednesday's 'Tonight Show.'
The 'Peppermint' star opened up to Jimmy Fallon about her hilariously ill-fated outing with her 12-year-old daughter, Violet.
It's hard not to laugh when the 'Girls Trip' breakout star retells some of her best stories on late night television.
