John Eyzen made his debut on stage at the age of three, in the musical school 'Glamour Dance Studio'.
When he was seven, he joined 'Kids on the Beach' Company and 'Luckine Dance Company', where he learned singing, acting, and various dance genres including jazz, classical, hip-hop and tap. For 11 years of training, he was on stage every week.
At the age of sixteen, John formed the group 'Eyzen', with whom he had several years of concerts in France then recorded an album.
In September 2004, John was selected for the cast in a French TV show 'Star Academy'. During this experience, he sang duets with Lenny Kravitz, Calogero, Florent Pagny, Garou, and sang in the chorus for Phil Collins.