Trollz - When Good Girlz Go Bad

Animation about five magical best friends who are half body, half very tall hair. When best friends Onyx, Topaz, Amethyst and Sapphire get rude and rowdy, Ruby becomes suspicious. What could make the girls turn their schoolfriends into chimps? What could make them cast a spell on their Principal? Why have they brainwashed Trollzopolis? Apparently the evil hypnotic cookies Simon fed them at Mystic Fallz weren't duds after all, just slow-acting, and time is up for Trollzopolis.