Adam Horovitz

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

S3, E22 · 30 ROCK

Kidney Now!

As Jack (Alec Baldwin) begins to build a relationship with his biological father, Milton's (Alan Alda) health hangs in the balance. Despite Liz's (Tina Fey) relationship track record, she draws public attention as a relationship expert after a talk show appearance. Meanwhile, Tracy's (Tracy Morgan) high school invites him to speak at graduation and Kenneth (Jack McBrayer) must help him overcome embarrassing memories from his high school experience. Jane Krakowski and Katrina Bowden also star.
S2, E6 · TOP CHEF: JUST DESSERTS

Sabotage

The remaining pastry chefs will be given a "License to Ill" as they raid the first ever "Top Chef Beastie Boys Pantry," where they must use the ingredients, named after the band's popular songs, to create a Beastie Boys-inspired dessert appropriate for a street art event. Jordan Kahn and Adam "Ad Rock" Horovitz serve as guest judges.
S1, E9 · THE EQUALIZER

Mama's Boy

The Equalizer goes undercover as an international drug smuggler to help a mother who has discovered her teenage son is a drug dealer. Christine Baranski and Adam Horovitz guest star.