DJ Premier: “That’s when Royce was on Koch. We did a little deal, and I did two records. ‘My Friend’ was one of them, and ‘Boom’ was another one. That’s definitely one of my favorite left-field records that I knew was going to blow. I didn’t have the ticks at the beginning yet, I just had the original loop, and didn’t even add the additional bounce on it. Then I added the sound of the clavinet, and it was done.”

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