NEW YORK—Prince Markie Dee, a member of the Fat Boys hip-hop trio who later formed his own band and became a well-known radio host, has died. He was 52. His death was announced Thursday by SiriusXM station Rock The Bells, which did not provide a cause of death. Born Mark Morales in Brooklyn, Prince Markie Dee was a prolific songwriter and founding member of the Fat Boys, a group known for beatboxing that released several popular albums in the 1980s such as the platinum record “Crushin’.” Their 1984 debut album, “Fat Boys,” went gold, their next two albums sold millions of copies, and they were featured in the films “Krush Groove” and “Disorderlies.” Morales, Darren Robinson, and Damon “Kool Rockski” Wimbley were known as Disco 3 when they won a rap contest in Brooklyn in 1984. That win led to a record deal and a European tour during which they …