That's my recollection, from those ancient days when one read liner notes on an LP.
When he hit with Fooled, I made a mental note that's still with me, noting the contrast between the style, context, etc.
I MAY be wrong (for the first time!), but do know this: Alvin Lee (saw him twice) rocked, Alvin Bishop didn't (wouldn't go to see him for free).
And Alvin and the Chipmunks ALWAYS sucked. I don't think it was even THEM singing.