A video posted to Ed's Instagram shows the two musicians playing Noah's "Stick Season" while sitting across from each other, as the patrons of Santa's Pub in Nashville sing along.
According to The Tennessean, they played about two dozen songs during the invite-only event, with Ed saying at the start, "We're going to play songs until someone gives up."
Ed's new album, Play, featuring the single "Azizam," will be out later this year.