Oliver Scott "Oli" Sykes (born 20 November 1986) is an English musician, singer, songwriter, entrepreneur, clothing designer, and record producer, best known as the lead vocalist of the rock band Bring Me the Horizon. He also founded the apparel company Drop Dead Clothing. Sykes has also created the graphic novel Raised by Raptors with Drop Dead Clothing artist Ben Ashton-Bell.
Sykes was born on 20 November 1986, in Ashford, Kent, England. As an infant, he moved to Australia with his parents, Ian and Carol Sykes, moving between Adelaide and Perth during a period of about six years. The family returned to the United Kingdom when Sykes was about eight, settling in Stocksbridge in Sheffield, South Yorkshire. As a teenager, he attended Stocksbridge High School then Barnsley College.
In late 2000, while still in school, he began crafting compilation CDs and short tracks under the name Quakebeat. He also played in the mock hip-hop band "Womb 2 Da Tomb" with his brother Tom Sykes and fellow Bring Me the Horizon member Matt Nicholls, and in metal band "Purple Curto" with Neil Whiteley, as the drummer/vocalist under the pseudonym "Olisaurus", which he would later use when releasing solo material.