Karl Joseph (born 29 June 1986), known professionally as Sir Spyro, is a British grime record producer, DJ, radio personality and label manager from East London. He was a Rinse FM resident for twelve years between 2005 and 2017, and since then has presented BBC Radio 1Xtra's Grime Show. He is a former member of grime crews Kamikaze, Aftershock and Ruff Sqwad, and has produced numerous hits including Stormzy's 2017 single "Big for Your Boots", which reached number six on the UK Singles Chart, and a remix of Ed Sheeran's 2019 single "Take Me Back to London" featuring Stormzy, Jaykae and Aitch, the release of which sent the song to number one in the UK.
