WATCH: Michael Buble Surprises New York Subway Riders With An Impromptu Performance (VIDEO)

26/04/2013 09:47 BST | Updated 25/06/2013 10:12 BST

Michael Buble surprised New York subway riders on Thursday with an acappella performance. The Grammy winner joined the group Naturally 7 on the platform at the West 66th Street subway stop.

He's not the first big-stage performer to surprise commuters with an impromptu sing-song. Remember THIS?!

WATCH the video above to see the reaction he had on a surprised bunch of bystanders.