Zack O'Malley Greenburg is senior editor of media & entertainment at Forbes and author of four books, including A-List Angels: How a Band of Actors, Artists and Athletes Hacked Silicon Valley and the Jay-Z biography Empire State of Mind. Zack's work has also appeared in the New York Times, Washington Post, Billboard, Sports Illustrated, Vibe, McSweeney's and the Library of Congress. In over a decade at Forbes, he has investigated topics from Wu-Tang Clan's secret album in Morocco to the return of tourism in post-conflict Sierra Leone to the earning power of Hip-Hop's Cash Kings, writing cover stories on subjects ranging from Richard Branson to Ashton Kutcher to Katy Perry. A former child actor, Zack played the title role in the film Lorenzo's Oil (1992) and arrived at Forbes in 2007 after graduating from Yale with an American Studies degree.