The DJ was always considered to be the cornerstone of hip hop music and culture. The DJ plays one of the most important roles in hip hop possibly even more than the rapper. The DJ is responsible for keeping the entire crowd motivated and is also responsible for choosing the best records to play to ensure that the rapper and the crowd stay pleased. These are just a few of the roles that the DJ plays. We've compiled a list of the 23 best DJs in hip hop to ever step foot behind a turntable, including all the legends from DJ Kool Herc to the late great Jam Master Jay.