"Metallica's 'Black Album' Hits 16 Million in Sales" Metallica's 'Black Album' Hits 16 Million in Sales Billboard.com "Metallica's 'Black Album' Hits 16 Million in Sales" "Metallica's 'Black Album' Hits 16 Million in Sales" Billboard "Metallica's 'Black Album' Hits 16 Million in Sales" Metallica 'Black Album' hits 16 million in sales Metallica 'Black Album' hits 16 million in sales crossing the 16 million mark just last month Metallica's 'Black Album' Hits 16 Million in Sales