Ok, I admit the Harlem Globetrotters were a maybe on my list, but then I figured that anyone who has played a basketball game against robots on Gilligan’s Island deserved to be featured on this site. Also they have a very cool theme song. Furthermore, they rule as recurring characters on Futurama. If you want to learn more about the Globetrotter homeworld you can get information here:
http://theinfosphere.org/Globetrotter_Homeworld