Star Butterfly walks around school with everyone greeting her. She then comes across a group of students, and learns that Brittney Wong is handing them out invitations to her birthday party. Star, who loves birthdays and parties, wants to be invited. Brittney rudely tells her she can be invited only when pigs fly. Star then makes a flying pig with her wand, thinking that she is now invited.
Later that night, Star brings Marco along, but Marco doesn't think they can go to the party. As Brittney's party bus passes by, Star launches both of them onto it, much to Brittney’s annoyance. Marco nearly gets motion sick, but stops himself when he sees Jackie and tries to impress her. When Star sees how unhappy Brittney's guests are, she decides to liven up the party with her spells. She turns the interior of the bus into a bouncy house and creates a hot tub on the roof, while Marco tries hard to hold his vomit.
When Brittney has the bus pulled over to kick Star and Marco out, Ludo attacks. Star fights his henchmen while Ludo and Brittney bond over their hatred for Star. When Star notices the bus is heading straight for a dimensional portal, she tells Marco to take the wheel. They crash the bus right next to a bus stop. The monsters come out hurt, and Marco finally vomits into a nearby trashcan alongside Ludo (who had helped himself to some bad oysters). While Brittney thinks her party was a disaster, her guests think it was a huge success.
After, Marco tells Star that he is going to let her plan his next party, as Star tells him to not touch her with his "puke fingers", then Marco heads to the trash can to throw up one last time.
Title in other languages
|Dutch||Feestje voor Brittney||Party for Brittney|
|French||Une fête monstre||A Monster Party|
|German||Ein unerwünschter Gast||An Unwanted Guest|
|Hebrew||המסיבה של בריטני||Brittney's Party|
|Hungarian||Brittney bulija||Brittney's Party|
|Italian||La festa di Brittney||Brittney's Party|
|Polish||브리트니의 생일파티||Brittney's Birthday Party|
|Polish||Impreza Brittney||Brittney's Party|
|Portuguese (Brazil)||Festa da Brittney||Brittney's Party|
|Portuguese (Portugal)||A Festa da Brittney||Brittney's Party|
|Russian||Вечеринка Бриттани||Brittney's Party|
|Spanish||La Fiesta de Brittney||Brittney's Party|
View the episode transcript here.
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- Tied with "Pixtopia" and "Sleep Spells" at 9 minutes and 30 seconds, this episode has the shortest runtime of any individual episode in Star vs. the Forces of Evil thus far.
- This is the last episode in the series to be entirely animated by Mercury Filmworks.
- This is the last episode to premiere using the old Disney XD on-air logo before the network's rebranding with the new logo that's been used since June 2015.
- The promotional poster featured a different title, "Party Bus", instead of it being the original title. It is very likely it is the official title. With that in mind, this makes this episode the first one to have two known names.
Revelations and continuity
- Star brings another laser puppy to life.
- Marco gets motion sickness every time the bus stops.
- Ludo and Brittney Wong are shown to share a hatred for Star Butterfly.
- While eating oysters, Ludo says, "There's a rumbly in my tumbly", a reference to a song in Disney's Winnie the Pooh and the Honey Tree.
- Marco says he gets carsick, but when he was in the Diaz car in "The Other Exchange Student", he was completely fine.
- When Marco is doing push-ups in front of his classmates who are sitting on the bus, Chantal's dress is strapped over her right shoulder rather than her left.
- During the bus fight scene, a freeway sign spells Hollywood and Sunset as "Holliwood" and "Setsun" respectively.
- "Diaz Family Vacation / Brittney's Party" Sneak Peek. YouTube (2015-11-30). Retrieved on 2017 March 5.
- Star vs. the Forces of Evil : Diaz Family Vacation; Brittney's Party. Screener. Retrieved on 2017 March 5.
- TV News Desk (2015-03-27). Disney XD Announces April 2015 Programming Highlights. Broadway World. Retrieved on 2017 March 5.