Travelers are used to seeing musicians in the New York City subway, but usually they are just random people trying to make a few bucks. Not world famous celebrities

However, a few lucky travelers at the W. 66th Street stop were greeted with a special celeb treat. Musician and singer Michael Buble was randomly singing an a cappella version of his new song Who’s Lovin’ You.

Now, video of the scene is going viral, appearing on Yahoo, NYPost, and SayOMG