Mickey, Minnie, Donald, Daisy, Goofy, Pluto, and a mechanical assistant "Mouseketool" called Toodles, interact with the viewer to stimulate problem solving during each episode's story. Disney says that each episode has the characters help children "solve a specific age-appropriate problem utilizing basic math skills, such as identifying shapes and counting through ten". The series uses "Disney Junior's 'whole child' curriculum of cognitive, social and creative learning opportunities". Once the problem of the episode has been explained, Mickey invites viewers to join him at the Mousekadoer, a giant Mickey-head-shaped computer whose main function is to distribute the day's Mouseketools, a collection of objects needed to solve the day's problem, to Mickey, one of them being a "Mystery Mouskatool" represented by a question mark, which, when the words "Mystery Mouskatool" are said, and the question mark change into the Mouseketool you get to use, another being a "Mouseka-Think-About-It Tool" represented by a silhouette of Mickey's head with gears rotating, and the gang must think of what to use before telling the Tool "Mouseka-Think-About-It-Tool, we pick the (object)". Once the tools have been shown to Mickey on the Mousekadoer screen, they are quickly downloaded to Toodles, a small, Mickey-head-shaped flying extension of the Mousekedoer. By calling "Oh, Toodles!" Mickey summons him to pop up from where he is hiding and fly up to the screen so the viewer can pick which tool Mickey needs for the current situation. The show features two original songs performed by American alternative rock band They Might Be Giants, including the opening theme song, in which a variant of a Mickey Mouse Club chant ("Meeska Mooska Mickey Mouse!") is used to summon the Clubhouse. They Might Be Giants also perform the song used at the end of every show, "Hot Dog!", which echoes Mickey's first spoken words in the 1929 short The Karnival Kid. This is the first time the major Disney characters have regularly appeared on television in computer-animated form. The characters debuted in CG form in 2003 at the Magic Kingdom theme park attraction Mickey's PhilharMagic, then in the 2004 home video Mickey's Twice Upon a Christmas. In 2011, Relient K re-recorded the theme song for Disney Junior - Live on Stage! after Mickey summons the clubhouse.