there's a couple problems with that example, however (besides the obvious "not that he ever did this")
I mean, would someone interested in mccartney really be surprised by a veggie lecture, considering the mccartneys used to have a line of veggie meals available at your local grocer?
Since it came up I'll note something I thought about after making my post: McCartney, for example, can give a PETA benefit concert, or do a speech at a fundraiser, etc. No problem there. He can write a song about animal rights. No problem. He can perform said song at a concert, even preface it by introducing it as something he feels strongly about and hopes the audience will think about it. No problem. He could also put a two page spread in his program with a coupon for donations to PETA. Still no problem. But, if you pay to see him in concert you would expect to be entertained. If he were to stop mid show and give a 20 minute speech on animal rights I would think he crossed the line. If I wanted that then I would have attended a benefit concert for PETA or what have you. Personally I, and many others, thought he was pushing it when during the retrospective film shown before his 89 and 93 tours he added a 90-120 second sequence of animals getting tested on and tortured to Helter Skelter. But really that was the end of it so ok. However, if the artist is politically minded, such as Zappa for example, I wouldn't be surprised if he stopped to tell me how evil he thought current politicans are. I would expect that so wouldn't be as offended. That's at least my opinion on it. I didn't pay to be lectured so you could argue he "took" my money then lectured me -- which is what I think Dan was trying to say. Thinking about it, tho, perhaps Dan meant in a wider view. Like turning on the tv and seeing Barbara Streisand telling me to lose the clothes dryer and hang my clothes to dry on a line in the backyard and conserve energy. Sure she has a right to do that, but we as the public also have the right to yell at the tv screen "aw shut the hell up." -paul