Warhaus is the solo project and alter ego of Belgian musician, songwriter and singer Maarten Devoldere, who is born in 1988 and is based in Ghent. Devoldere is also one of the lead vocalists in Balthazar. Warhaus begins in 2016, after Balthazar’s Thin Walls period and the band’s hiatus for individual projects.

The project’s music is described as moody and atmospheric, with comparisons to Leonard Cohen and Tom Waits, and with a romantic intensity often associated with Serge Gainsbourg. Under the Warhaus name, Devoldere releases three albums: We Fucked a Flame into Being, Warhaus and Ha Ha Heartbreak.