Today is a special day for hip-hop — the 15th anniversary of Outkast’s classic album Stankonia. This was Andre 3000 and Big Boi’s 4th studio album, but it was the one that really set Outkast off in a major way.

In honor of the 15th anniversary, MTV put together a 10+ minute video showing unreleased studio footage of 3 Stacks and Big Boi working on Stankonia, as well as brief interviews with other artists such as Tip, DJ Khaled, Wale, and CeeLo Green, who reminisce on the impact the album had for them.

If you’re a die hard Kast fan, you’ll want to spend the next 10 minutes watching this video below. Happy Stankonia day!