On Springsteen, who candidly is my least favorite popular musician on every dimension possible (except for giving fans a great value for their live show dollar), I have it on VERY good authority that Bruce does a LOT of charitable giving, specifically in Asbury Park, but he does it anonymously. I give the guy mega props for that.
Another VERY good book-—by a leftie, who just whines that rock music wasn’t far left enough, but who has real good research-—is called “There’s a Riot Goin’ On.”