Jimmy Fallon has made it clear that while his competitors go heavy on the anti-Trump rhetoric, he’s going to keep doing what he does best: earnest and giddy bits that showcase his versatility as a song-and-dance man and sketch comedy wizard.

On The Tonight Show Monday, Fallon was very much in his comfort zone singing “Hold On” with The Roots and Fleetwood Mac members Lindsey Buckingham and Christine McVie. It was the latest installment of Fallon’s ultra-popular Classroom Instruments segment, whose past participants include One Direction, Metallica and Adele.

One person noticeably absent from the proceedings was Stevie Nicks, who has no involvement in Buckingham and McVie’s new album, appropriately titled Lindsey Buckingham/Christine McVie. And while we certainly miss Nicks’ husky voice, Fallon brought along some special reinforcements to pick up the slack.

Though Fallon’s trademark segment often channels the youthful exuberance of children by unfolding in a classroom, he’s never used any actual children. Until now. The late night host enlisted children from SeriousFun—an organization founded by Paul Newman that assists children with serious illnesses—to help on vocals.

The late night television landscape is pretty grim lately, as hosts do their best to make sense of the absurdity emanating from Washington. Say what you will about Fallon and his politics (or lack thereof) but a little joy to counteract all the gloom and doom isn’t such a terrible thing.

Plus, “Don’t Stop” whips. Can’t argue with that.