GP Basic. From their sound they're hard to distinguish from young adult groups. In fact, their sound is pretty fun.
GP Basic is, I would say, what Aaron Carter was to the 90's pop movement. Namely, young teens getting in on the action of their older pop peers.
Their music video Game is catchy and has all the important parts of a music video (fashion and dance) but everything is more cute than its adult equal. In fact, the youngest member even yells at you from a giant French grocery bag.
My favourite part is where they ride through a grocery bag handle. :D