"Krei-oke Night" is the first segment of the fifty-ninth episode of Big Hero 6: The Series. It premiered on February 15, 2021 alongside "The Mascot Upshot", and is the first segment of the tenth episode in the third season as well as the series finale.
- Ryan Potter as Hiro Hamada
- Scott Adsit as Baymax
- Jamie Chung as Go Go Tomago
- Génesis Rodríguez as Honey Lemon
- Khary Payton as Wasabi
- Brooks Wheelan as Fred
- Diedrich Bader as Felony Carl
- John Michael Higgins as Mini-Max
- Jenifer Lewis as Professor Granville
- Lucas Neff as Noodle Burger Boy
- Andy Richter as Globby
- Maya Rudolph as Aunt Cass
- Nicole Sullivan as Hangry Panda
- Cree Summer as Crushroom
- Alan Tudyk as Alistair Krei
- Kari Wahlgren as Hyper-Potamus
- The episode was originally titled simply, "Karaoke Night".
- For some reason, this segment was initially listed second with "The Mascot Upshot" listed first.
- The episode's premise is slightly similar to the Big City Greens episode "Okay Karaoke", which aired earlier that month.
- Honey Lemon, Wasabi, Alistair Krei, Aunt Cass, Globby, Felony Carl and Professor Granville sing in this episode.
- Both Maya Rudolph and Jenifer Lewis are noted singers.
- Noodle Burger Boy is revealed to have been locked out of Krei Tech.
- This episode slightly indicates that Globby and Felony Carl are in a relationship. Supervising director Jessie Juwono later confirmed that they are in love with each other.
- This is the only episode to be written by Bob Schooley and Mark McCorkle, the showrunners.