The Celebrity Bots were robots that lived on Deathrock9's planet.
Wikizilla: Rulers of Wiki Edit
After winning a planet in a raffle, Deathrock9 and Rita moved there as soon as possible. Deathrock9 built a city that he populated with robots designed to resemble celebrities and fictional characters. However, they soon turned on him as he was not a robot. They took him to the robot factory and informed him that he would be transferred into a new robot body. They gave him the option to choose a robot body and he settled on the character K9. They soon built the body for him and he was permanently transferred into it. Deathrock9 and Rita soon escaped and moved into a house on Earth, ditching the robots on the planet forever.