William Braunstein (born July 14, 1972), better known as Ill Bill, is an American rapper and record producer from Brooklyn, New York. Having gained notoriety in the underground hip hop group Non Phixion, Ill Bill is known for his politically-themed lyrics and as the producer, founder and CEO of Uncle Howie Records. His brother Ron is also a rapper and producer, known as Necro.

Ill Bill was the main voice behind the now disbanded Non Phixion, and is currently involved with La Coka Nostra, along with Everlast, Slaine, Danny Boy and DJ Lethal of House of Pain & Limp Bizkit fame. In 2004 he released his debut solo album What's Wrong with Bill? and has since released various solo mixtapes and collaborations in anticipation for his sophomore solo record and the upcoming La Coka Nostra album.
On September 16, 2008, he released his sophomore album on Uncle Howie Records, entitled "The Hour of Reprisal". The album includes appearances from Necro, Tech N9ne, B-Real of Cypress Hill, Everlast, Bad Brains, Max Cavalera of Soulfly, Jedi Mind Tricks, Howard Jones of Killswitch Engage, Immortal Technique and Raekwon of Wu-Tang Clan. It also features production by DJ Muggs, T-Ray, DJ Lethal, Necro, DJ Premier and Ill Bill himself.






















He is also scheduled to release collaboration albums with DJ Muggs, Vinnie Paz, Sean Price and Jeru The Damaja. Possibly also a concept mixtape together with Raekwon. Ill Bill was supposed to release a collaboration album with rapper Crooked I and production team Blue Sky Black Death, but the project was cancelled.

During Spring 2008, Ill Bill joined Tech N9ne and Paul Wall on a nationwide tour. "The Hour of Reprisal" was released on September 16, 2008 by Uncle Howie Records and Fat Beats.
Ill Bill has said that his third album will be released in 2011, and that it will be wholly produced by Necro and himself.

Discography

• 2004: What's Wrong with Bill?


• 2008: The Hour of Reprisal


• 2010: Kill Devil Hills (DJ Muggs vs. Ill Bill)


• 2011: Heavy Metal Kings (Ill Bill & Vinnie Paz)


• TBA : The Pill (Ill Bill & Sean Price)