Twilight question

hiii i read this book many years ago but i have been trying to remember the name and the rest of the plot but i literally can’t. all i do remember is it had a yellow cover and it was a YA book that took place in highschool with a group of 4-5 popular girls and i think one less popular girl and part of the plot was a christmas or new year’s party that took place and i believe a conflict broke up but i can’t remember the rest or the name!!! can’t someone help me lol

(ignore the book selected, it’s just a placeholder)