The Schwartzman Quartet is a group of major characters in Jack's Big Music Show.
The Schwartzman Quartet is a group of four almost identical singers who often visit Jack's clubhouse to sing a song or two. Not only do they look the same; the members of the Schwartzman Quartet also dress and sound exactly alike.
Each member of the Schwartzman Quartet is turquoise with orange hair and orange freckles. They all have black eyes and wear yellow and red striped shirts.
The members of the Schwartzman Quartet appear in many episodes of Jack's Big Music Show. They debuted in "Little Bad Wolf" and were last seen in "Silly Show."