Herbie Hancock and DeRay McKesson also added commentary to K. Dot’s convo with Rick Rubin.

When two greats like Kendrick Lamar and Rick Rubin start a musical conversation, it’s best to just sit back and soak it all in. That is, unless you’re Eminem, then you can chime in using the Genius Web Annotator.

On October 20, GQ Style revealed the cover for their first-ever Holiday issue. On it, Kendrick Lamar poses in all his King Kunta majesty with a $3,000 Michael Kors fur. In the issue, he has a priceless conversation with legendary music producer Rick Rubin.

Together the pair dive into the impact of Dot’s 2015 To Pimp a Butterfly album, the social impact of “Alright” and they also talk about his writing process.

Lamar credits Eminem’s Marshall Mathers LP with helping to spark a curiosity that would lead him to the studio to create when he was younger. “I got my clarity just studying Eminem when I was a kid,” Kendrick explains.

The Rap God wasn’t the only one who drop annotations: jazz icon Herbie Hancock, TDE producer Sounwave and activist DeRay McKesson all dropped tates on GQ’s site using the Genius Web Annotator.

You can read the full story—and annotations—here.