Juicy Central: Diva by Ayshia Monroe

A school story with realistic teens and teen talk.  You won't find proper English but what you will find is a story that takes place in a city like New York or Chicago.  The characters are compelling.

Tia is star of this story but all the characters have their own book.  Tia is smart and wants to succeed.  She has bright ideas and learns quickly.  She uses people to get her own way.  She may not be as smart as she thinks she is.