Musician and Music Producer
Born Oct 31, 1966

Adam Keefe Horovitz, better known as Ad-Rock or King Ad-Rock, is an American musician, guitarist, rapper, producer, and actor. He is best known as a member of the pioneering hip hop group the Beastie Boys.

related links

News + Updates

Browse recent news and stories about Ad-Rock.


Learn about the memorable moments in the evolution of Ad-Rock.


1966 Birth Born on October 31, 1966.


1982 15 Years Old Horovitz began his music career with a stint in the punk rock band the Young and the Useless, who would often perform with the Beastie Boys. In 1982, Beastie Boys guitarist John Berry quit and Horovitz replaced him. He was only 16 at the time. After Horovitz joined the band, the Beastie Boys changed their sound, evolving from a hardcore punk band to a more hip-hop oriented group. The band was signed to Def Jam, and released their debut album Licensed to Ill in 1986. … Read More


1992 25 Years Old Horovitz was married to actress Ione Skye from 1992 to 1995. They separated in 1995 and divorced in 1999. … Read More


2003 36 Years Old He wore a medical alert bracelet after having a tonic–clonic seizure in 2003.


2013 46 Years Old Horovitz is featured prominently in The Punk Singer, a 2013 documentary film about Hanna's life and career; he even shot a scene himself to show Hanna's distressed reaction to the medication she was taking against Lyme disease.
Original Authors of this text are noted on
Text is made available under the Creative Commons Attribution-ShareAlike License.