The singers are three little boys made out of smoke from The Goo's poisons.
They follows her like three little children.
The leader boy, the pink one, is the high pitch one.
The blue one, is the lowest pitch one. (He doesn't sing too often, he's shy)
The green one, is the middle voice.
The voiceactor is Moa Olsson
(They start to sing at 0:11)