Prince Markie Dee, who was one-third of the legendary rap trio The Fat Boys, has sadly passed away at 52 years old. The Sirius XM radio channel that Prince hosted and DJ’ed on, Rock The Bells, revealed the sad news on Feb. 18. “The Rock The Bells family is heartbroken to learn of the passing of Mark ‘Prince Markie Dee’ Morales earlier today. That voice and his presence can never be replaced. Our thoughts and prayers go out to his loved ones,” the radio station tweeted on Thursday.