Stoner metal trio Sleep will celebrate 4/20 with their first album in nearly two decades, The Sciences, out tomorrow via Third Man Records.
The six-track album boasts some very bud-friendly track names including "Marijuanaut's Theme" and "The Botanist." Another cut, "Giza Butler," honors Black Sabbath bassist Geezer Butler. The album is expected to arrive on streaming services
This article originally appeared on www.rollingstone.com: Stoner Metal Heroes Sleep to Release New Album on 4/20