Adam Keefe Horovitz, also known as King Ad-Rock or Adrock, (born October 31 1966, in South Orange, New Jersey) is a rapper, guitarist, musician, producer, and actor. He is best known as a member of the pioneering rap group, the Beastie Boys. Horovitz began his musical career with a stint in the punk rock band, The Young and the Useless, who would often perform with the Beastie Boys. Wikipedia
The definitive Wikipedia entry for Adam Horovitz. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Adam_Horovitz
After leaving his band "The Young And The Useless", Adam Horovitz joined Mike D and Adam Yauch in the Beastie Boys, opening for Madonna on her famous "Like a Virgin" tour. Adam has also appeared in films such as Lost Angels (1989) with Donald Sutherland a www.imdb.com/name/nm0395259/