Billy Joel, J.K. Simmons, and Jimmy Fallon give an unrehearsed and spontaneous doo-wop performance of “The Longest Time” with Billy’s band while filming local promos.
https://youtu.be/5WSb0IxTEkM
Billy Joel, Jimmy Fallon and J.K. Simmons Perform Unrehearsed “The Longest Time” During Commercial Break
