K.C. Doesnt believe that Ernie has a girlfriend, until he brings her back after school! #Awks Watch this episode of K.C. Undercover Spy-Anoia Will Destroy Ya .brK.C Is introduced to her new sister, J.U.D.Y. A robot spy who has super strength and also super sass! Watch this episode of K.C. Undercover My Sister From .brThe Pentatonix perform Ariana Grandes Problem on K.C. Undercover! How cool is this?! Watch this episode of K.C. Undercover on Disney Channel UK, and .brO.M.G. Check out this totes amazing lyrics music video for Keep It Undercover, the offical opening titles from the newest Disney Channel show K.C. Undercover .