FROM THE HEAVENS METAL SLUDGE EXCLUSIVE: Angel singer Frank DiMino readies for rare Whisky concert   LOS ANGELES — The legendary rock band was called Angel for a reason — and not just because they all wore white: Frank DiMino had a voice from god, and he still does. The Angel singer returns to the iconic group’s adopted home in California on Friday, Oct. 21 at the Whisky on Sunset Boulevard, and a capacity crowd is expected[…]