19. Klaatu - Hope (1977)
Most people know the Moody Blues album Days Of Future Passed where Rock music fuses with classical. Klaatu goes even further to create a whole new sound combining both genres.
Hope is a concept album about an advanced ancient civilization that destroys itself. Klaatu was recording this album right around the time that there were rumours about Klaatu being secretly the Beatles. This rumour both helped and hindered them. Their first album
3:47 EST gets most of the attention but this album pulls you along on a journey.