"Black Light Attack!" is the tenth episode of the fourth season of the American television comedy series 30 Rock, and the 68th overall episode of the series. The episode was written by Steve Hely and directed by series producer Don Scardino. It originally aired on NBC in the United States on January 14, 2010. Guest stars in this episode include Dr. Sanjay Gupta and Cheyenne Jackson.

The fourth season of 30 Rock, an American television comedy series, consists of 22 episodes and began airing on October 15, 2009, on the NBC network in the United States. The season was produced by Broadway Video, Little Stranger, and NBC Universal; the executive producers were series creator Tina Fey, Lorne Michaels, Marci Klein, David Miner, and Robert Carlock.