David Treahearn is an English record producer, programmer, recording and mix engineer based in Richmond Upon Thames, England. Treahearn is credited on more than 91 international commercial music releases as mix engineer, composer, musician and assistant with some of the world's most successful artists including Madonna, The Black Eyed Peas, Oasis, Björk, Britney Spears, Gwen Stefani, Depeche Mode, Elbow Massive Attack, Kylie Minogue, Britney Spears, Darren Hayes, Linkin Park, No Doubt, Dave Matthews, Keane, New Order, Janet Jackson, Natasha Bedingfield, Marilyn Manson, Girls Aloud, The Spice Girls and Turin Brakes.