Dr. Dre released his classic album, 2001, 20 years ago. According to Complex, Apple Music is celebrating the 20th anniversary of Dre’s album with a new mini-documentary, which reveals details surrounding the record and what sparked its’ inception.

In the clip, Dr. Dre recounted his thoughts as he entered the year 2001. “The 90s were just like, hip-hop was a contact sport,” he said. “All of a sudden, I’m on my own again and I have to go find new artists and new musicians to work with. Fortunately for me, I had done it once before when I separated myself from Eazy-E, Jerry Heller, Ruthless, and what have you. So I know what starting over feels like. But the second time, I had Jimmy.”

Jimmy Iovine then explained that Dre’s approach to music was rooted in inspiration, versus going after commercial success. “There are some artists in music that all they are [doing] is searching for inspiration and then there are artists that are just searching for hits,” Iovine said. “He’s only searching for inspiration and if hits come, great.”

Dr. Dre said that before the album completely came together, there was a missing link, which was Eminem. Dre credited the Detroit rapper for reigniting his creativity. He continued, “Eminem was the missing link. Hearing that demo with Eminem and how it made me feel and then meeting him and how we saw eye-to-eye as far as the work goes and what we wanted to do in the studio, he was hungry and I was hungry. . . We just clicked and that just brought everything and everybody together that was happening at that time.”

Dre’s album 2001 was released on Nov. 16, 1999. It was his follow-up to his 1992 debut, The Chronic. The album debuted at No. 2 on the Billboard 200 chart and was certified 6x platinum.

Check out reflecting on his sophomore album below.