The Transformers Theme is a song composed and written by Ford Kinder and Anne Bryant that was originally used in The Transformers television series and Hasbro's commercials. The opening for Seasons 1, 2, 3 and 4 of The Transformers all shared the same lyrics but different backing music. Season 1 and 2 both shared the same unique instrumental for the end credits (also used by Omni Productions as the ending theme to Transformers: The Headmasters, Transformers Super-God Masterforce and Transformers Victory) but both Season 3 and 4 just used the instrumental for their opening which famously contained a chorus of "Ah-ah" chants. Verses were added in the version performed by Lion that was used as the ending to The Transformers: The Movie, this full version was later covered in 2007 by Blacklab (