Jah Warrior is a United Kingdom roots reggae/dub production team, record label, sound system, and musical group centred around Steve Mosco. Mosco first got interested in reggae as a teenager in Manchester. He started attending sound system events in Moss Side and Hulme, before travelling further afield, experiencing the likes of Jah Shaka. In 1981 he moved to London and was invited by Tim Westwood to do a reggae show on a pirate station called LWR. He also worked as a selector on the Humble Lion sound system, which in 1987 was renamed Jah Warrior.

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