Isabelle Geffroy (born 1 May 1980 in Tours, France), better known by the nickname Zaz, is a French singer-songwriter who mixes jazzy styles, French variety, soul and acoustic. She is famous for her hit "Je veux", from her first album, Zaz, released on 10 May 2010. She has sold over 3.4 million albums worldwide and is currently one of the most successful French singers in the world.