He and his sister became child stars in the 1950s by making exuberantly unhinged music. “I had so much energy,” he once said, “they didn’t know what to do with me.”
Few people were aware of the 1994 single “Insomniac” by the rock duo Billy Pilgrim, and it quickly sank into obscurity. But a cappella groups can’t stop singing it. We set out to find an explanation.