Unintelligible?

So today, I was sitting in church listening to a young man play the piano and sing. I didn't realize he could play piano, so I was mildly amazed. The song wasn't particularly to my liking, but it was ok and he was doing well.

Then I heard the old guy behind me lean over to his seatmate and ask a question that nearly made me laugh aloud.

"Is he singing in ENGLISH??"