Hey, who invited Yellow Face?
King Butterfly visits Star and the Diazes after a spat with the Queen, but he soon wears out his welcome.
Tropes:
- Accidental Misnaming: While sleep-deprived by her father's obnoxiously loud late night antics, Star briefly addresses Marco as Oskar, the name of the guy she has a crush on.
- Bait-and-Switch Comment: "If your mother were here, and knew you were using magic inappropriately, she would send you straight to St. Olga's… but I'm not your mother!"
- Big Eater: Helios, who after eating all the food at the party, makes plans to eat the entire planet next.
- Comically Missing the Point: When Marco asks Star if the King's behavior (showing up unannounced and causing chaos) sounds familiar, she only remarks that he does the same thing to the Queen.
- Compressed Hair: In the opening scene, Star has the entirety of her knee-length hair contained under a swimming cap (though she could have used magic to achieve that affect).
- Continuity Nod:
- The creatures seen in Star's room include the Flying Pig from "Brittney's Party" and the poodle-taur from "Sleep Spells".
- King Pony Head is one of the guests at King Butterfly's party.
- Fun with Flushing: King Butterfly's fascination with the toilet leads him to throw everything inside to watch it go down, with Star egging him on.
- Hypocritical Humor: When Star complains about her father showing up and causing chaos, Marco dryly remarks, “I can weirdly relate.” Star says the same thing to her father when he complains about Helios crashing his party.
- Ironic Echo Cut: When Star turns the house into a water park, Marco says that his father is going to flip. Mr. Diaz then jumps into the pool, yelling "I'm doing a flip!"
- Jerkass Realization: Both Star and King Butterfly get this at the end of the episode when they finally notice how their shenanigans affect the people who have to put up with them.
- Mundane Object Amazement: Star and her father regard the Diazes' bathroom as "the most magical room in the house", especially the toilet.
- Running Gag: Throughout the episode, Marco is trying (and failing) to keep his socks dry.
- The Thing That Would Not Leave: King Butterfly decides to make his visit permanent, much to Star's chagrin.
- Trash of the Titans: It doesn't take long for King Butterfly to leave Star's room a mess of dirty laundry.
- Weird Sun: One of King Butterfly's party guests is Helios, a miniature, sentient sun, who's been known to devour whole planets if his appetite isn't satisfied.
- Wild Teen Party: King Butterfly invites all his friends to a party at the Diazes' home while the parents are away.
