http://www.youtube.com/watch?v=uH2d8i55ezc&feature=related
I personally was not offended by the mothers of invention, however many people were.
Edit: again I didn't find the song offensive in itself but these part of The Doors lyrics of The End always made me feel uneasy :
The killer awoke before dawn, he put his boots on
He took a face from the ancient gallery
And he walked on down the hall
He went into the room where his sister lived, and...then he
Paid a visit to his brother, and then he
He walked on down the hall, and
And he came to a door...and he looked inside
Father, yes son, I want to kill you
Mother...I want to...WAAAAAA
C'mon baby,--------- No "take a chance with us"