There was this kid who stepped in as drummer for the Who at a concert once

There was this Who concert in America when Keith Moon fell down and passed out. So Townsend asked the audience if there was someone there who could play drums for them. So this High School kid got up and volunteered, and he played drums for the Who for the rest of the concert. Afterwards, he went back to school, played a bit in a few bands, and then became a businessman. Does anybody know who this guy is? I'd love to interview him.