Son of Israel Horovitz
Brother of Rachael Horovitz and Matthew Horovitz
The other two Beastie Boys admitted that he was the author of about 80% of the music on the album "Hello Nasty".
His mother died of causes related to alcoholism while he was in his teens.
Is the Beastie Boys' guitarist.
Few people know that he suffered from a major epileptic fit, caused from flash photography. His seizures are now under control and is under constant medical supervision.
Pursued an acting career in the late 1980s and early 1990s, typically getting James Dean-style parts as brooding, troubled young men. He apparently abandoned his acting career in 1994, although he returned to the screen in Noah Baumbach's While We're Young (2014).
Although born while his mother was visiting in New Jersey, he was raised in Manhattan, where he still lives.
Although he plays guitar with the Beastie Boys, Adam is also skilled on the drums, keyboards, and bass.
Shares a birthday with Vanilla Ice.
Ex-son-in-law of Donovan and Enid Graddis.
Former brother-in-law of Donovan Leitch Jr., Astrella Celeste, Oriole Nebula Leitch and Shaun Ryder.
Best friend is actress Nadia Dajani.
He and ex father-in-law Donovan were inducted into the Rock and Roll Hall of Fame on the same night.
He is of Ashkenazi Jewish (father) and Irish (mother) descent.