Coalesce is an American metalcore band formed in Kansas City, Missouri, in 1994. Known for their innovative and aggressive sound, they played a significant role in the development of the mathcore genre by blending complex rhythms and abrasive vocals. The band released several influential albums, including "Functioning on Impatience" and "0:12 Revolution in Just Listening," before going on a hiatus in the early 2000s. They later reunited for sporadic performances and recordings, solidifying their legacy in the hardcore and metal scenes.