"Mewberty" - When Star starts sprouting hearts all over her body, the telltale sign of Mewberty, Marco searches for a way to keep her from losing control. Emmy Award nominee Jeffery Tambor ("Transparent") guest stars as Glossaryck. "Pixtopia" - Marco and his friends travel to a dimension of pixies and are forced to work off their debt in the Shard Mines after they run up Star's Magic Mirror bill with prank phone calls. Anna Camp ("Pitch Perfect") guest stars as Pixie Empress.