Karl Joseph, known professionally as Sir Spyro, is a pioneering grime and dubstep DJ, producer, and radio presenter from East London. He built his reputation during a twelve-year residency on Rinse FM before taking over the Grime Show on BBC Radio 1Xtra in 2017. As a producer, he is responsible for defining genre anthems like the 2016 Deep Medi Musik release "Topper Top" featuring Teddy Bruckshot, Lady Chann, and Killa P, alongside mainstream hits like Stormzy's "Big for Your Boots." His sound bridges the raw energy of pirate radio with heavy low end and polished club production. Recent activity includes the 2026 "2nd SQ" EP on Deep Medi Musik and performances at venues like Drumsheds in London and The Black Box in Denver. Sir Spyro remains a foundational pillar of UK bass culture, consistently pushing the boundaries of grime while anchoring its most vital traditions.