Continuity mistake: When Nikki is talking to Derek at Steps, at the end of the first shot, she begins to move her left arm up towards his neck. In the next shot, her left arm is already around his neck, before he pushes her arms down. In the next shot, her left arm is up again as she caresses the back of his neck. In the following shot, her hand has suddenly moved to the side of his head, but in the next shot, her arm is down. (00:29:50)
Continuity mistake: When Sara is talking on the phone to her friend from her other school, her friend asks if there are any white guys at her school, and Sara says no there aren't. In the classroom scene and in other shots, you can see a few white guys.
Answer: If you are talking about when they break up and ignore eachother at school, its 'Crazy' by Kacy and Jo Jo.