The Pretty Committee (PC) - The alpha clique that consists of Massie, Dylan, Alicia, Kristen, and eventually Claire. These are the main characters of the series.
The New Pretty Committee (NPC) - When the clique was in boyfast - they promised to give up boys and lived by BFF (Best Friends First, Later refered to as Boy Fast Forever) Shortly after it failed and they went back to being called the Pretty Committee.
TUPC - The Unbelievably Pretty Committee. Alicia's unsuccessful clique from when she tried to take over the alpha spot. Consisted of Alicia, Olivia Ryan, Kori Gedman, and Coral 'Strawberry' McAdams.
DSL Daters - The eighth grade clique that consists of Skye Hamilton, Becca Brie, Missy Cambridge, Leslie Lynn Rubin, and Heidi Sprout. They are the alphas of the entire school.
M.U.C.K. - Massie's Underground Clinic for Kissing. Created in The Pretty Committee Strikes Back.
The Country Club - A group of girls who tried to make their own clique when the PC were expelled.
Da Crew - Consisted of Coral 'Strawberry' McAdams and Kori Gedman, who tried to make their own clique when the PC were expelled. It disbanded because they wanted to join the protests to bring back The Pretty Committee.
Soul M8s - A boy-girl clique that Alicia was alpha of in Boys R Us. It was made up of the former PC (no Massie) and thier crushes.
Massie and Crew- Massie's group of Models that her and Layne hired to make the PC jealous in Boys R Us.