Booker is an American crime drama series starring Richard Grieco that aired on the Fox Network to May 6, 1990 from September 24, 1989. The series is a spin-off of the 21 Jump Street series' 2nd installment and 21 Jump Street. The smoothness of Dennis Booker was originally a recurring character on that authorities drama throughout its next season. The theme song for its series,"Hot in the City", has been performed by Billy Idol.