Prince Markie Dee has been played on NTS over 10 times, featured on 7 episodes and was first played on 6 April 2017.

Mark Anthony Morales (February 19, 1968 – February 18, 2021), better known by the stage name Prince Markie Dee, was an American rapper, songwriter, producer, and radio personality. Morales was a member of the Fat Boys, a pioneering rap group that gained fame during the 1980s.

Morales's accomplishments with the Fat Boys include seven full length albums. Of these, three attained gold certification and one – Crushin' (1987) – reached platinum. Their hit song from that album which featured the The Beach Boys, "Wipeout", peaked to number 12 on the Billboard Hot 100. The trio also appeared in the comedy film Disorderlies that same year. They had earlier starred in the feature films Krush Groove (1985) and Knights of the City (1986). The Fat Boys attempted to broaden their artistic scope by releasing On and On (1989), a rap opera album. Its lack of success hastened the demise of the group. They released one more album, Mack Daddy (1991), before disbanding soon afterwards.

After the Fat Boys, Morales went on to a successful solo career. He signed with Columbia Records and released a solo album, Free (1992). It included a #1 hit single, "Typical Reasons (Swing My Way)". After joining with Cory Rooney to form a production company, Soul Convention, Morales wrote and produced tracks for such artists as Mary J. Blige, Jennifer Lopez, Mariah Carey, Craig Mack and Marc Anthony. He notably did this for Blige's first album, What's the 411? (1992), as well as her her hit song from that album, "Real Love". From 2008 to 2010, Morales served as the afternoon drive radio host/DJ at 103.5 The Beat WMIB radio in Miami, Florida. He subsequently worked at WEDR 99.1 FM. He last worked at the Rock the Bells station of Sirius XM, where he hosted his own show called The Prince Markie Dee Show. Mark was Vice-President of Uncle Louie Music Group.