Co-founder of the label Silence Records and a notable producer on the European scene, Undefined. delivers a modern Rave music, inspired by old-school energy. He gained attention with his track You Woke Me With Your Acid Kiss, where the Breton artist stands out with his electric sound, blending acid lines and hypnotic vocals with punchy kicks and devastating basslines.

Based in Paris since 2022, followed and played by renowned artists like Charlie Sparks, Lee Ann Roberts, Parfait, and Alignment, the artist captivates with a well-refined formula, one of which he is among the few to master. With numerous notable releases on prestigious labels such as Obscuur Records, Innergate, Possession, and Normative, Undefined. skillfully oscillates between genres, always in service of one thing: energy. His sets also feature the majority of his influences: Acid, Industrial, Hardstyle, and Hardcore.