(AllHipHop News) Rick Rubin has been contributing to Hip Hop for thirty years. With that wealth of experience, the producing legend surely has knowledge about some of the greatest songs of the genre. Rubin shared his thoughts on numerous tracks via Genius.com.

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The co-founder of Def Jam Records annotated songs he produced for artists such as Kanye West, Jay Z, LL Cool J, and Beastie Boys. He also covered tracks by Dr. Dre, Ghostface Killah, Geto Boys, and D’Angelo.

Check out some of Rick Rubin’s Genius annotations below.

Jay Z’s “99 Problems” [Verse 2 – produced by Rick Rubin]

This is the one verse that he wrote down. It’s the first time I ever saw him write anything down.

He read it off his laptop. He wrote it the night of.

Geto Boys’ “Mind of a Lunatic” [Verse 1: Bushwick Bill]

Geffen refused to put out the Geto Boys because of “Mind of a Lunatic.”

LL Cool J’s “Rock The Bells” [produced by Rick Rubin]

It was never about proving anything, it was just that this is what I like and this is true to who they are. The only reason those first records were so aggressive, it had little to do with me. That was the good music at that moment. It wasn’t because it was that, it was the music. If the best music in that moment was folk music, that’s probably what I would have done first. I mean, I like all kinds of music, I always have, I’ve always listened to all kinds of music.

Dr. Dre’s “Nuthin’ But A G Thang”

I never really listened to The Chronic. I guess I never liked smooth? Same with Puff, who really brought R&B into it. I preferred hip-hop when it was nothing like R&B. I love breakbeats and B-boy style drum machines. I never liked the slick stuff.

Ghostface Killah’s “Intro (2000)”

I just listened to Supreme Clientele the other day, and it’s kind of untouchable.

Beastie Boys’ “Rhymin’ and Stealin'” [produced by Rick Rubin & Beastie Boys]

For the most part, with Licensed To Ill, I did the majority of the music, and we all brought in lyrics. Usually, we’d be hanging out all night at Danceteria looking at girls, trying to make each other laugh with lines and writing them down. We were there every single night.

I remember a time when I couldn’t get in.

Kanye West’s “Bound 2”

Something we talked about with Kanye was doing an alternate version of Yeezus, because there are so many versions of songs, great versions. There are versions just as good as what’s on the album, just different. I know as a fan of the album, I’d like to hear that. Maybe some day, whenever he wants. But it exists! That s**t exists.

Kanye West’s “Guilt Trip”