Four decades after their big-screen hit, the rock legends David, Derek and Nigel have reunited for one final (really, truly) concert.

"Spinal Tap II: The End Continues," in theaters Friday, is a fun reunion with the fictional heavy metal band that adds some funny new characters and sketches.

Enter the Tapocalypse as Christopher Guest, Michael McKean, Harry Shearer and Rob Reiner return in a still-funny, cameo-studded telling of the hapless band’s final gig