Vanderbilt University student Michael Pollack got the chance to ask a question at a college-hosted Billy Joel appearance. He told the ‘Piano Man' that he had performed "New York State of Mind" with Joel's saxophonist in the past and wondered if he could go onstage and play it with Joel himself.

Taken by surprise the celebrity could have easily demured, but he said, "Okay."

The impressive performance was recorded on video and Pollack is now making the rounds on national media shows.

Joel gave Pollack high praise: "Nice goin' Michael… Guy's got chops!"

(WATCH the video below – READ more of the story on NPR)