Brian Hugh Warner (born January 5, 1969), known professionally as Marilyn Manson, is an American musician, songwriter, multi-instrumentalist, actor, painter, multimedia artist, and former music journalist. He is known for his controversial stage personality and image as the eponymous lead singer of the band Marilyn Manson, which he co-founded with Daisy Berkowitz and of which he remains the only constant member. His stage name was formed by juxtaposing the names of two American cultural icons, namely actress Marilyn Monroe and murderer Charles Manson.

He is best known for his band's records released in the 1990s, most notably Antichrist Superstar and Mechanical Animals, which along with his public image earned him a reputation in the mainstream media as a controversial figure and an allegedly negative influence on young people. In the U.S. alone, three of the band's albums have been awarded platinum and three more went gold, and the band has had eight releases debut in the top ten, including two number-one albums. Manson has been ranked number 44 in the Top 100 Heavy Metal Vocalists by Hit Parader, and has been nominated for four Grammy Awards.

Manson made his film debut in 1997, as an actor in David Lynch's Lost Highway. Since then he has appeared in a variety of minor roles and cameos. He was interviewed in Michael Moore's political documentary Bowling for Columbine, discussing possible motivations for the 1999 Columbine massacre and allegations that his music was somehow a factor. On September 13–14, 2002, his first art show, The Golden Age of Grotesque, was held at the Los Angeles Contemporary Exhibitions center. Manson revealed a series of 20 paintings in 2010 entitled Genealogies of Pain, an exhibition showcased at Vienna's Kunsthalle gallery, which the artist collaborated on with David Lynch.