From his website:

Michael Campbell, a.k.a. Mikey Dread is one of the most influential performers and innovators in reggae music. His abilities, technical expertise, and unique vocal delivery combine to create a unique sound that tells the listener emphatically that it is the "Dread at the Controls." Perhaps Mikey's work with The Clash has garnered him with the most recognition, but his credentials and resume started long before his eye-opening production on several releases with the renowned Punk Stars from London. His work and interaction with The Clash was a significant event in the integration of reggae into popular music throughout the world. The album, "Black Market Clash", is a brilliant fusion of late 1970's punk rock and a heavy reggae bass and drum line. The reggae aspect of The Clash's album distinguished their sound from the other punks that emerged in the 1970's. Soon thereafter, it was a must for just about every punk band to have a reggae cover song on their album. Mikey was the first Producer ever to produce a UK chart hit for The Clash" Bank Robber" and later produced several reggae cuts on their internationally recognized Album "Sandinista."