I discovered ZZ Top when I was a seventh grader in Jr.High with Rio Grande Mud. I've remained a fan for all of these years. I can listen to all of the catalog and still connect. The band now 50-years on is the same and the core of the music is still the same. If there ever was a musical equivalent of "the right stuff" I think this band hit on it and found a path to keep making it interesting. Here's a fairly highlighted tour of their history. It's interesting enough you don't have to be a fan and if you are then all the better. What they do probably wasn't supposed to be as commercially successful as it was and therein lies the intersection of their cultivated mystery and creativity in a genre not celebrated for such. Selling albums in the realm of the rock monsters of all-time is proof that this is tasty music that won't simply fade to black in spite of the decimation of the traditional music business. Yeah, ZZ Top rocks and does so with conviction and joy. See the film and keep rockin', that's the celebration explored quite enjoyably here.