Massive Attack is a British musical group formed in 1988 in Bristol, England. They are known for pioneering the genre of trip-hop, which blends elements of hip-hop, electronic music, and rock. The band's sound is characterized by its atmospheric production, deep basslines, and soulful vocals. Their debut album, Blue Lines, released in 1991, received critical acclaim and included hits like "Unfinished Sympathy." The group consists of founding members Robert Del Naja, Grant Marshall, and Andrew Vowles. Over the years, Massive Attack has collaborated with various artists, including Tricky and Horace Andy. Their music often addresses social and political issues, making them influential in both the music industry and cultural landscape.