"Cartoon Heroes" is a song by the Danish-Norwegian dance-pop group Aqua from their second studio album, Aquarius. The song was sent to radio stations worldwide on January 1, 2000. It was their first release anywhere for over 14 months, due to the time spent touring the world, resting and recording the second album. Although still a commercial success, it failed to follow the success of earlier songs such as "Barbie Girl" (1997), reaching top ten positions in ten countries. In Denmark, the song debuted at number one and went on to became the best-selling single of 2000, with sales of 32,765 copies.