Ninjago (previously known as Ninjago: Masters of Spinjitzu until 2019) is an animated epic-fantasy superhero television series produced by The Lego Group. It was created to coincide with the Lego Ninjago line of construction toys, which is based on the characters and events of the series. It centers on the fictional world of Ninjago, telling the story of a group of six teenage ninja and their battles against the forces of evil. The series was created by Michael Hegner and Tommy Andreasen, two Danish film producers. The storyline was written by The Hageman Brothers until the ninth season; their successor as the head writer was Bragi Schut. The series features the voices of Jillian Michaels, Sam Vincent, Vincent Tong, Brent Miller, Michael Adamthwaite, Kirby Morrow, Andrew Francis, Kelly Metzger, Paul Dobson, and Mark Oliver. The voice cast was recorded in Canada for its entire run. The music was scored by composers Jay Vincent and Michael Kramer.