Arena-rockers who never forgot heavy metal was once white blues, they took a long vacation and resurfaced as a fine white blues band starring a guitarist who always sounds like himself. Now, with hitest b.p.m.s speeding the groove, they've motorvated back toward metal again--boogie in overdrive, a funny car that's half platinum and half plutonium. The videos make you smile, the record runs you over. That's the pleasure of it. B+