I remember reading in some Public Enemy album liner notes that when the group was looking for a DJ (who would eventually be Terminator X), they were looking for a 'Jam Master Jay level' deejay. WHAT?! You know how all powdered soft drinks are called Kool-Aid, or how all in-line skates are called RollerBlades? Jam Master Jay was like that... the industry standard!
Watch JMJ start the show like a pro, then watch Run-DMC come shut sh!t down!! Awesome jewel from back in the day (September 1984). Hip-Hop forever!!