ALVINNN!!! and the Chipmunks 2015 Season 2 Episode 3 - Simon the Superb / The Sub >Alvin needs money, so he becomes substitute music teacher for Miss Smith. However, he proves to be a poor teacher and quickly gives up to just have fun with his students. When the time to perform in front of an audience comes, however, he panics but manages to reach a deal with the students so that they accept to learn a bit. The performance proves to be pretty poor, but the Chipmunks' and Chipettes' vocals make up for it somewhat and Alvin gets to keep his job.