Year 3500 U.G.C. , the galaxy is almost in peace and several planets in different systems decide to create a new entertainment together to seal better relationship together.

Searching the galactic archive, they find out about an old contest which happened long ago, far before the Universal Galactic Calendar was created, on a planet called Earth, where singers were defending their countries on that planet.

It was decided that using the actual time and teleportation technologies, each planets could summon singers from that old planet to defend them in this new contest.

That's how the Galactivision Song Contest was created.