Following the Chipmunks fade from fame, the three brothers took separate paths. Simon entered college with majors in Physics, Biology and Chemistry, graduating with honors, much to the chargin of his human classmates. Shortly thereafter, he disappeared, turning up years later as head of a small furry commune, where he spent his days creating new mind expanding substances and contemplating the great mysteries of the universe with his fellow furry friends.

There's more to this story, parts regarding Alvin and Theodore, and parts I haven't thought up yet, but I thought I should do another (albeit cleaner) drawing of my favorite munk. That, and he just looks so hot as a hippie