Cassius is a French electronic music duo formed by Philippe Zdar and Boom Bass, and a key act of the French touch movement. They gained international recognition with hits like 1999 and I <3 U SO, blending house, funk, and pop into timeless club anthems.

Following the passing of Zdar in 2019, Boom Bass continues the project, keeping Cassius’ legacy alive through music, collaborations, and performances.