Mike Mettler

ZZ Top ain't been nicknamed That Little Ol' Band From Texas for nothing, you know. But just in case you don't, please bear witness to this highly informative 2019 Banger Films documentary, which delves Rio Grande-deep into the true origins of this tight-knit blues 'n' boogie trio. (Incidentally, said trio also happens to comprise the longest-running unchanged lineup in rock history—51 years and counting, as of presstime.)