Born in West London to St Lucian parents, Amos Herman works as Specialist Moss, a British DJ and producer. His music draws on reggae, dub and dancehall as well as drum and bass. In 2014, he released the EP Dub Style on Herman Music, then joined Madd Again!, whose album MaddTing, Vol. 1 followed in 2015. Specialist Moss has worked with Zed Bias, Mr Williamz and Shy FX, and his releases and credits include Critical Music, Lobster Boy and TenWest. He was based in London and collaborated with Sam Binga on “Dem Bwoi” for Critical Music. Other collaborators include Clipz and RedLight.
In 2023, Specialist Moss released the singles “B4” and “Warrior”; “Highly Favoured” followed in 2024. “Tell Dem” features Strategy and Voltage. The track was released on DnB Allstars Records. In 2016, Specialist Moss appeared as a vocalist with Madd Again! at Swing Ting’s World Carnival event in London. He released “Smokers Dub” with Voltage on Rinse / KOOL in 2025, followed by “Roots Revival” with Abstrakt Sonance, CØNTRA and ILLAMAN on CØNTRA in 2026. “Hypa” also came out in 2026, on Room Two Recordings.