Sister Act / Li'l T.Sister Act: Eleanor has a fallout with Brittany and moves in with the boys. Initially, only Alvin is hostile to Eleanor's invasion, but when Jeanette arrives too for the same reason, the Chipmunks decide to move in with Brittany and freak her out until she agrees to talk to her sisters, who all apologize to each other. As they are about to leave David and the boys' house, however, Alvin asks what the dispute was all about, and the bickering starts anew...
Li'l T: As he does not manage to convince Alvin to listen to his new rap song, Theodore uploads it on the Web and it goes viral. Soon, he is signed for a solo career under the name Lil' T. However, Alvin and the others miss him, so they go find him and apologize just as he is about to go on tour with his new rapper friend Biggy Large. Once back home, they all perform and record one of Theodore's compositions with the Chipettes.