Niall Horan and Jimmy Fallon Take on the Instant Song Challenge

The Tonight Show host Jimmy Fallon and Niall Horan teamed up to create songs based on titles suggested by fans. First up was “Witness the Fitness” with Fallon taking the lead while Horan contributed on guitar and during the chorus. “Quickly Clicky Pens” came next and Horan set the tone, singing and playing the harmonica. The duo opted for a mellow vibe with “Stepping on Toes,” creating a folksy romantic-ish ballad.

Fallon and Horan wrapped it up by joking about making out in between takes. Fallon also took the time to remind everyone to check out Horan’s new single, “Slow Hands.”