There is more than one artist that goes by the name Madhouse:

1) Madhouse was the name of a post‑punk band fronted by Monica Richards. (1983–1986)

From the mercyground.com site: «Madhouse recorded and released a self‑titled album on FOY Records in 1984, and went on to become a staple act in the Washington D.C. punk scene, branching out and finding a home in the darker‑edged realm of 80s' Underground bands, such as Xmal Deutschland, TSOL, and UK Decay.»

2) Madhouse was a four‑piece instrumental funk/jazz fusion band masterminded by Prince and consisting of his co‑horts Eric Leeds, John Lewis, Levi Seacer Jr., and Matt Fink. They released two albums, both in 1987: 8 and 16. All tracks were titled by their tracknumber: One, Two, etc. Both albums carry eight tracks.

3) Madhouse was an early 70s funk outfit led by Gary 'Mudbone' Cooper, who would later co‑found Bootsy's Rubber Band with legendary P‑Funk bassist Bootsy Collins. Madhouse churned out a mix of heavy rock‑infused funk, a la early Funkadelic, and spaced‑out soul‑jazz jammings. Their 1972 album «Serve 'Em», a righteous anti‑Nixon treatise, is now highly collectible.