Massive Attack est un groupe britannique originaire de Bristol et précurseur de la musique trip hop. Il se compose à l'origine de Robert Del Naja (3D), Grant Marshall (Daddy G) et Andrew Vowles (Mushroom). Le style du groupe, toujours en avance sur son temps, va évoluer : d'abord proche du hip-hop, du groove voire de la soul, il se rapprochera de l'électronique à la fin des années 1990.
En désaccord avec l'évolution du style musical, Mushroom a quitté le groupe à la sortie de l'album Mezzanine, en 1998.
Angel, the first track on the album Mezzanine is a highly emotional trip-hop tune featuring Horace Andy's vocals. The song evokes dark and sinister cries from the slow and repetitive percussion and then strikes a distressed melody with an electric guitar drowning through the sonic atmosphere of the piece.
The song has been featured in the movies "Snatch" (2000), "Flight of the Phoenix" (2004) and several others as well as TV series such as "The West Wing", "Person of Interest" and "Smallville."
The music video features Daddy G walking through a parking garage and being followed by other individuals, the first of which being Horace Andy, thereafter 3G joins him, together with other members of the band. Eventually, he begins running away as the numbers of the followers grow. Eventually, he reaches a dead end, slows, turns around to confront his followers, and the tables turn as he begins chasing the crowd away.