A look at the commercial history of heavy metal through the albums which have reached the top of the UK and US album charts from 1970 to the present day.

Black Sabbath reunited for the first time in 20 years at their farewell show, Back to the Beginning, on July 5, but it wasn't ...

Last week, the gods of rock descended on Birmingham to pay tribute to Ozzy Osbourne and Black Sabbath. On stage were ...