Callisto is a Finnish post-metal band whose evocative sound has carved a unique niche within the heavy music scene. The band originally formed in 2001 in Turku, and while their earlier work expressed a stronger kinship with hardcore punk and sludge metal, their music has since evolved into more atmospheric and progressive realms. Known for their haunting melodies, captivating soundscapes, and the seamless fusion of aggression with introspection, Callisto's art has matured over the years, drawing comparisons to the likes of Neurosis and Cult of Luna.

Their third album, "Providence," released in 2009, showcased a significant shift in their sonic palette, embracing cleaner vocals and a more melodic approach while still radiating the intensity of their previous works. It is a testament to their ability to transform and push the boundaries of their genre. The band followed it up with "Secret Youth" in 2015, a record that further expanded their musical horizons, marked by intricate compositions and an ethereal atmosphere. Meanwhile, their other notable releases such as "True Nature Unfolds" and "Noir" have solidified their reputation as one of the most intriguing acts in the post-metal arena. With the arrival of the "Covenant Colours" single, Callisto continues to redefine and reimagine their sound, much to the delight of fans longing for profound musical experiences.