The singer nailed the splits and did a high-kick as she rounded off her week-long “Tonight Show” residency with a pretend sing-off.
Fallon, meanwhile, turned to some puppets for help.
The pair gave Julia Michaels’ “Issues,” Portugal. The Man’s “Feel It Still,” “Violet” by Hole and Talking Heads’ “Once in a Lifetime” the lip sync treatment.
In the end, there was really only one winner.
Find out who in the clip above.
This article originally appeared on HuffPost.