Dean Fagan loves nothing more than to sing to the donkeys at a sanctuary he runs with his wife, Dawn. In this recent performance, he goes full donkey doo-wop, channeling the 1950s teen idol Paul Anka.

Paul Anka, Sofronio Vasquez, Michael Bubble. A little sexy Luisana Lopilato waiting for us. Bye," says Bublé, taking the camera and talking to it as the three walk through the lobby of a hotel toward ...