Marillion is a British rock band formed in 1979, known for their progressive rock sound and theatrical performances. They gained significant fame in the 1980s with their album 'Misplaced Childhood,' featuring hits like 'Kayleigh' and 'Lavender.' The band's music is characterized by intricate compositions and poetic lyrics, often exploring deep emotional themes. Over the years, Marillion has evolved its sound while maintaining a loyal fan base, thanks to their innovative approach to music and storytelling. They continue to tour and release new music, showcasing their enduring legacy in the rock genre.