Kids' band - the Marimba Ponies

Here are The Marimba Ponies, who operate internationally without the crutch of conductor or sheet music, bouncing and prancing rhythmically in order to foster international goodwill, doing Sabre Dance. The Marimba Ponies are aged four through twelve, at which point they are forcibly retired from the marimba business and offered gainful employment dodging lizards with the J-Pop girl group Morning Musume.