Sean "Diddy" Combs has been sentenced to more than four years in prison. Source: Sean "Diddy" Combs - Picture / Sean "Diddy" Combs - Picture provided by Canva U.S. District Court Judge Arun Subramanian sentenced the disgraced music mogul to 50 months behind bars, per NBC News. Following his highly publicized trial, prosecutors sought an 11-year, three-month prison term for his Mann Act conviction, while the defense was trying for a 14-month sentence, which would amount to time served. Combs, 55, was taken into custody in September last year.