I listen to a lot of music by artists whom have decidedly strong political views but in all honesty, i could give a flying fuck what they think of the world situation or public policy of this government or that.  I watch CNN for my news, i listen to music for aesthetic values.

Exactly. McCartney, in my example, isn't being an artist if he uses the concert I paid to attend as an excuse to lecture me on what I should eat for dinner. He wants to sing a block of songs about it, ok, but I'm paying him to entertain me with his art, not to be a spokeman. (I don't mean this to be a big McCartney thing. I'm just using him as an example as I'm most familiar with him and his politics, and I feel most would be aware as well)

everyone is free to express views but don't be a sheep and follow someone just because they are popular.

Truer words are rarely spoken. -paul