Teen high school book ideas? 10 points!?

ok so i want to write a book for teens, about high school. i want something like the popular girl is overthrown, or something happens to the popular girl so she isn't popular anymore etc, but i want it to be unique, and not like all the other high school books out there. any ideas at all would be appreciated. you can even tell me your own book ideas, just make sure you tell me they're yours and you don't want me to use them.