Star vs. the Forces of Evil (2015)

S1E7 Cheer Up Star

Star is feeling blue because her crush, Oskar, hasn't reached out to her. In an effort to lift her spirits, Marco attempts to cheer her up, but his well-intentioned actions backfire when he inadvertently summons Ludo and his horde of monsters. As chaos ensues, Star and Marco must navigate the unexpected turmoil while facing their feelings and the challenges posed by Ludo's looming threat.