Abby's Trash, Cathy's Treasure

S5, E13: The media is going crazy for Maddie's second music video with Sia so Abby has all of the girls doing duets in her honor. Not everyone is a fan of Maddie's latest work, especially Cathy, who has assembled a new Candy Apple team made up of dancers who have all worked with Abby and are ready to seek vengeance on the dance floor.