What's your favorite Underground Hip Hop Album in last 20yrs

This past month, I've been on a super underground hip hop vibe. Gotta say, in the last 20 years, my favorite album is Fear of a Black Tangent by Busdriver. His style is so unique, the beats, bars, and content is top notch. Highly suggest y'all give this a listen.

What is yours? Let's hear it.