Instant Song Challenge with Niall Horan and Jimmy Fallon

Also available on the NBC app

Jimmy and Niall Horan improvise original songs based on song titles sent in by fans. Download Niall's new single "Slow Hands" at

Appearing:Jimmy Fallon
Tags: the tonight show starring jimmy fallon, Jimmy Fallon, Niall Horan, Instant Song Challenge
S45 minWeb ExclusiveTalk and InterviewLatenight