Born December 12, 1976, near Paris, Guillaume Stelly plays bass in high school and joins his first band.

In 1999, after graduating from Dauphine University with a major in economics, he feels the time has come to choose a real job : he wants to be a bass player !

Guillaume is currently on tour with Julie Zenatti, along with Loïc Pontieux (drums), Vincent Bidal (piano) and Manu Rodier (guitar).

Guillaume has also released two albums with Urban Addict, his electro-pop group. He plays the bass but he also composes the songs and is in charge of musical direction, production and realisation.

He has been associated with numerous projects :

The Cool Crooners ( Jazz singers in Zimbabwe), a videotaped concert at the Bataclan for France 2, and he has played numerous venues, among which Central Park ( New York), Atlanta, Seattle, Los Angeles, Tabarka (Tunisia), the Montreal Jazz Festival, Harrare ( Zimbabwe ), the Paleo Festival in Nyon ( Switzerland)...

He has composed music for TF1 : Composition and realisation of music for the “Starting Over“ show.

La Contrabanda ( salsa) : bass, recording and mix of the first album “Romantica Dura.“

Erickel ( rock) : bass, choir and arranger, co-realisation of their first album. Concerts at the Nouveau Casino de Paris, La Cigale...

Private parties (jazz ) : Concerts at La Tour Eiffel, VIP lounge of the Parc des Princes, Pavillon Dauphine, Casino de Deauville, Musées des Arts Forains, Pavillon Gabriel...

Reevox ( US pop ) : bass and musical direction.

Patrice Maktav ( Star Academy) : Bass and realisation of songs.