lol. That's really cute. I like the economy of animation you used to animate the girl dancing, only a few layers moving and such. Very creative. For some reason in parts of the movie I can see the animations off stage, you should fix that. You could make minor improvements by cleaning up the lines in the giant floating lips, I can see some extra lines sticking out, and also her hand on the guitar looks a little strange. She looks like shes strumming with her forefinger, but you could easily change it to make it look like shes holding a pick instead.
Very neat, what a stylish first entry. I liked the hip shaking with the music; groovy, man, groovy! It was cool seeing different scenes you used to portray the music video, like that scene in the apartment looking in on the t.v; very cool. Keep up the good work.