There's probably too many to count but you can bet that most of them have only realized the hearing loss recently....but of those that have spoken of it:
Neil Young
Ozzy Osbourne
Phil Collins
will.i.am
Brian Wilson
Jeff Beck
Eric Clapton
Pete Townshend...and of course we all know about the most famous musician:
Ludwig van Beethoven
I used to attend concerts of the Argentine folk legend, Mercedes Sosa, often sitting in the front row. The music was always unbearablely loud and I'd have to turn my hearing aids off and keep it very low during the performance, with Blondie as well (they were fantastic by the way); whenever I saw Tango in Boston, again, the music was ear shattering. There should be a rule that dictates the acceptable level of volume used during performances for the safety of the audience, many times which include children.
Laura