Worlds Apart is the fourth studio album by the Canadian progressive rock band Saga and was originally released in 1981. The album has been released with several different covers. The album was produced by Rupert Hine. Frontman Michael Sadler stated in the band's video DVD Silhouette that Hine told him to stop "singing like a choir boy" and actually had him climb up to the roof of a barn located on the farm in England where the recording was done in order to get the proper passion out of Sadler for the song "On The Loose". Sadler's vocal style was noticeably different on Worlds Apart than on the first three Saga albums—a style that he kept in successive performances with the band.