Which four metal bands slipped into this list of the best rock bands of all-time and how did they stack up against those rock ...

"It has taken us quite a bit of time, but we're making good progress and we're stoked on it!" ...

“This is his full stop.” Black Sabbath formed in Birmingham in 1968 and went on to become one of the most successful metal bands of all time. The band is credited with helping to define metal ...