[Jack Black]

after learning that he received about 2,000 painkillers, prescribed by four doctors in six months

They try to make that sound like a huge amount, but it works out to a little less than 3 pills every six hours -- it depends on the dosage, obviously, but that's hardly an extraordinary number of pills.Enough to make him permanantly DEAF. Too many, for sure.

[RushCrush]

Where was it proven that Rush's hearing loss was caused by drug use?

I must have missed that. If you could provide a link that would be great. I was under the impression that it was caused by an autoimmune disease.