I feel so bad for you I can't begin to tell you. Anytime you are stuck in the car with children that insist on hearing songs over and over again....UGH!!
We've fixed that problem now. The kids have headphones and they have their own MP3 players to listen to whatever they want (Mommy approved first).
Yeah, and sometimes we still hear her music playing over the car stereo. (they're older now. that was the better part of a decade ago.)