Dr. Dre may be a billionaire, but he hasn’t abandoned music. Apple’s newest employee is working on Kendrick Lamar’s upcoming album.

During an interview with Nessa at KUBE 93’s Summer Jam, the “Poetic Justice” rapper revealed that he and his mentor are back in the studio.

“Dr. Dre is focused like he always been,” said Kendrick. “He focused on music, man.”

Despite selling Beats by Dre to Apple for $3 billion, Dre hasn’t lost his passion for music. “One thing about Dre, you can’t take the music away. No matter how much money he has, he’s always gonna be right there in that studio,” said K-Dot. “That’s before the deal, after the deal. He’s always locked in there. That’s something that I know personally.”

The follow-up to Kendrick’s Grammy-nominated debut good kid, m.A.A.d city is due this September.

As for Dre’s elusive Detox, Kendrick doesn’t know its status. “I couldn’t give you that word. He’ll have to give you that word, but I know that he’s still a creative genius in there.”