Cartoon movie with 2 mice
I saw a movie when I was young, either late 70's or maybe even early 80's that had 2 cartoon mice in it. There was a girl and boy mouse, there was an evil mouse who turned out to be the devil... he (the devil) made a deal with them and they became famous... or something like that. People have told me the movie I was looking for was "Rock and Rule"... I watched it... it's NOT. The devil character was also a mouse... and I think he was fat or big.
Please does anyone know of this movie or anything about it? Please help... I know I did not imagine this and am not crazy.