I read an entertaining book a couple of years ago called What Would Keith Richards Do. Apparently Keith has a penchant for very low key charity.

One of the more interesting stories in the book: There was a blind teenaged girl in some part of Canada who was a huge Stones fan and went to every concert when they were playing in her town. Keith found out about her and was always concerned for her welfare -- is she having a good time, did she make it home okay, etc.

A couple of years later, the Stones are back in Canada and Keith gets busted with a decent amount of heroin; enough to send him to prison. The blind girl testifies as a character witness at his trial and the judge so moved by this testimony orders as his punishment to perform a charity concert benefiting the blind instead of prison time.