April Fools' Day is Adult Swim's time to shine. Here are the network's best April 1 pranks throughout the years.
  • 2004 – Mustaches
  • 2007 – The Aqua Teen Hunger Force Movie Premieres … Sort Of
  • 2009 – Adult Swim Gets Room-Pilled
  • 2012 – Re-Toonami of the King
  • 2016 – Literally Nothing
  • 2017 – Rick and Morty Season 3 Premiere Shadow Drop
  • 2018 – Subs Over Dubs
  • 2020 – Night of Premieres and Post Malone
  • 2021 – Adult Swim Jr.
  • 2022 – Pibby!