December 3, 2014 10:48 AM EST

Reese Witherspoon helped Jimmy Fallon get into the holiday spirit during a visit to the Tonight Show to promote her new movie Wild. In one of Fallon’s nonsensical wordplay games, the pair sang classic Christmas carols with the original lyrics swapped out for random words. Yule logs and sleigh bells were nowhere in sight as Fallon attempted to refrain from giggling and Witherspoon, a good sport, got stuck with some unfairly high notes.

The humor is at about the right level to make a kindergartner crack up and might have been bolstered by just an ounce of raunch. But the duo does make a rather adorable pair, nonetheless.

More Must-Read Stories From TIME

Write to Eliza Berman at

Read More From TIME
You May Also Like