Leo (constellation) Babylonian astronomy, the constellation was called UR.GU.LA, the "Great Lion"; the bright star Regulus was known as "the star that stands at the Lion's breast." Regulus also had distinctly regal associations, as it was known as the King Star. In Greek mythology, Leo was identified as the Nemean Lion which was killed by Heracles (Hercules to the Romans) during the first of his twelve labours. The Nemean Lion would take women as hostages to its lair in a cave, luring warriors from nearby towns to save the damsel in distress, to their misfortune. The Lion was impervious to any weaponry;
Kimba the White Lion and a closing theme. The opening is called . The end song is . For the Japanese remake, the opening song is sung by Ichiro Mizuki, and the ending is sung by Tomoko Tokugai. The American theme was written by Bernie Baum, Bill Giant and Florence Kaye and sung by Bill Giant. The opening song for the sequel series is "Go Ahead Onward Leo!" written by Isao Tomita and sung by Mieko Hirota. The US-American theme song known as "Leo the Lion" was written by Mark Boccaccio and Susan Brunet of Miami, Florida's SONIC-Sound International Corporation in 1984. "Jungle Emperor