There are two artists named Madam X.

Madam X was an American hard rock band that was formed in Detroit, Michigan, in 1981 by the Petrucci sisters Roxy Petrucci and Maxine Petrucci. They later relocated to New York, where they found their vocalist, Bret Kaiser. The band also featured male members John (Jayme) Grosjean and Chris Doliber. A record deal was also secured with Jet Records boss Don Arden. The band released one album, which Rick Derringer produced. A second album was recorded but never released, as they no longer had a record deal. Several line-up changes followed, including later to be Skid…