Mark Kasprzyk better known as Redlight King now known as M. Rivers (born January 2, 1977 in Hamilton, Ontario) is a American-Canadian rock band formed by Mark Kasprzyk. Intense, soulful and poetic, Redlight King's music is both biographical and cathartic. Using the backdrop of his humble beginnings growing up in the hardworking Canadian steel town of Hamilton, Ontario, Redlight King frontman and songwriter, Kaz, wrote his first song at the age of 7 but didn't pick up a guitar until he was 21.