Muppet Babies Chorus is a Muppet Babies toy made by Carnival Toys in 1985, under the Tunetown USA label. Each colorful key on the toy piano is connected to the head of one of the Babies -- Baby Piggy, Baby Animal, Baby Skeeter, Baby Fozzie, Baby Kermit, Baby Gonzo, Baby Scooter and Baby Rowlf. As the keys are pressed, the Babies' mouths open and close, so that the characters "sing" the tune. The toy comes with color-coded sheet music that fits at the top of the piano, so that budding piano players can learn to play tunes.