What album completely changed your taste in music?

I want to hear about that one album that completely shifted your musical direction. The one that opened you up to a genre you never thought you'd like, or made you see music in a totally different way. Share the album, what you were listening to before, and how it changed your perspective.

I'll start:

"Kid A" by Radiohead. I was strictly into classic rock and grunge until my roommate played this on repeat for a week straight. At first I hated it, but by day 4 something clicked. It completely changed how I thought about what music could be, and sent me down a rabbit hole of experimental and electronic music I never would have explored otherwise.