Legendary New York DJ Mr. Magic (born John Rivas, aka Sir Juice) started his career in 1979 with The Mr. Magic Disco Showcase. Over time as more hip-hop was pressed to vinyl, Magic's show changed and became what is widely considered the first all hip-hop radio show, Rap Attack, in 1983 on community radio WHBI.

It wasn't long before Magic made the transition to a commercial station, WBLS thanks to the help of NYC stalwart Frankie Crocker. With Marley Marl by his side, Mr. Magic remained on WBLS until 1989.

More

• Biography.com: Mr. Magic
• Hip-Hop DX: Mr. Magic Dies of Heart Attack