A band in a video game in a cartoon. So many levels! Apparently, the band has been kidnapped, and the object of the Iron Tiger arcade game is to save them. All of this happens in the "Money Broom Wizard" episode of the oddball animated kids show Clarence (first aired 21 Apr. 2014).
Probably a reference to the real-life 1983 Journey arcade video game, which featured real band Journey.