Hey, does anyone know the name of this movie? 

It starts out with a tomboyish girl who moves into a rich girl's house because their parents are getting married. The tomboy likes music and art, and draws some pictures of the rich girl. 

At first, the rich girl is very crappy to her. In class, the tomboy is failing English, so their teacher makes the rich girl tutor her. The rich girl also has a boyfriend who is cheating on her. The tomboy helps her find out.

 Also the rich girl gets sick and the tomboy takes care of her. Later, the rich girl's boyfriends beats up the tomboy. Then, the rich girl gets the tomboy into a music show.

Thank you : )