What happens when your best friend becomes your worst enemy? That’s the question posed by the Disney Channel movie Frenemies, premiering January 13. The plot follows three pairs of pals whose friendships are put to the test. The stars of Shake It Up, Bella Thorne, 14, and Zendaya, 15, play buddies Avalon and Halle. A publisher wants to turn their fashion blog into a magazine. But there’s only room for one.  Watch the video to see what the stars told TFK about battling one another in their new movie. (Reporting by Vickie An / Videography by Kelli Plasket / Editing by Stephanie Kraus)