"Information must be free!"

Does anyone really think that Tom Petty is endorsing Michelle Bachman when she campaigns using his song American Girl? These songs have become such a part of our common culture that I don't think people make that mistake. So whatever the legal merits, I am a bit dubious of Tom Petty's claim that political candidates he does not like should stop using his song. (Of course, I find further irony in that rock music is now such a part of common culture that social conservatives even use it.)