"Roy Kerr, aka the Freelance Hellraiser, is one of the creators of the UK bootleg (mashup) scene.He gained fame with a mashup in 2001 called \"A Stroke of Genius\", which combined an instrumental edit of The Strokes' track \"Hard To Explain\" with Christina Aguilera's pop hit \"Genie in a Bottle\". James Hyman who, along with Eddy Temple-Morris, championed mash-ups and the song in particular on the Xfm show The Remix, described it as \"so musical."@en . "Freelance Hellraiser"@en . "British musician" . "Roy Kerr"@en .