Olias of Sunhillow is the debut studio album by English singer-songwriter Jon Anderson, released on 9 July 1976 by Atlantic Records. When the progressive rock band Yes took a break in activity in August 1975 for each member to record a solo album, Anderson, having established himself as their frontman, decided upon a concept album that tells the story of four tribes of an alien race and their journey to a new planet after their home is threatened by a volcanic eruption. Olias, a magician, builds a spacecraft named the Moorglade Mover and is helped by fellow magicians Ranyart and Qoquaq to gather and carry the population to their new home.

The Songs of Zamran: Son of Olias is the working title of a studio album by English singer-songwriter Jon Anderson that has been in development since 2000. It is a sequel to Anderson's solo debut Olias of Sunhillow (1976), a conceptual progressive rock album based on the story of four alien tribes and their journey to a new home after their planet is destroyed by a volcanic eruption.