Mr. Oizo is the pseudonym of French music producer Quentin Dupieux.

Dupieux is most famous for his electro track "Flat Beat", which became a hit all across Europe in 1999 for being featured in a series of Levi's jeans TV advertisements. Dupieux also directed the ad, which featured a yellow puppet named Flat Eric nodding his head to the sound of the track while riding in a pickup truck. Flat Eric later appeared in the music video for "Flat Beat".

After "Flat Beat", Oizo released his first album in 1999, Analog Worms Attack, featuring a single of the same name.

In 2005, Oizo released his second album entitled Moustache (Half a Scissor).

In 2006 and 2007, Oizo produced remixes for Kavinsky, Jamelia, Cassius, Scissor Sisters and, most recently, Calvin Harris.

Dupieux's first feature film, Steak, was released in France on June 20th, 2007.

Mr. Oizo's latest EP is called Transexual and was released on Ed Banger Records. The EP features a re-working of the 1979 disco track "Do It At The Disco" by Gary's Gang. The track appeared on Oizo's MySpace page in 2006 under the title Patrick122.