Thierry Hazard (born June 7, 1962), whose real name is Thierry Gesteau, is a French singer. Hazard was born in Compiègne, France, and grew up in Sèvres. During the 1980s, he became the singer of the band GPS, an acronym of Garage Psychiatric Suburban (the group's guitarist, Tom "Backerfix" Darnal, became Mano Negra's keyboardist). Hazard released his first solo single "Poupée psychédélique" in 1988 but it passed unnoticed. Two years after, he released "Le Jerk" which became a huge hit in summer 1990 (#2 in France).