Who wouldn't stick around to hear Michael Buble' do an impromptu performance of "Who's Lovin' You"?  I bet most of you would. Heck, gotta admit, I'm not the biggest Buble' fan, but I would!

And that's exactly what happened in New York City at the West 67th Street subway stop.  Here's the video, so you can pretend you were there too. The song is off Michael Buble's new album 'To Be Loved'.