Catchiest Song/Theme-Song You Can Think Of

[Insufficient Mage]

The theme song for the most random game of all time, or for when you're on 'shrooms:

YouTube - Katamari Damacy Theme (PS2)

Dang it that's what I was going to say!

Well another theme song that's catchy in the same way that the Katamari song is, is the LocoRoco theme. So sickeningly happy...

Youtube - LocoRoco Song