Billboard has shared their list of the best rap producers of all time.

The list includes The Neptunes, 9th Wonder, The Bomb Squad, J Dilla, Larry Smith, Hit-Boy, 40, Madlib, Dj Quik, Just Blaze, Timbaland, Swizz Beats, and more.

First on their list is Dr Dre.

They state that he has “become the most important producer/artist in rap’s 50-year history.”

Who shouldn’t have been on this list?