Metallica’s 1991 self-titled album, best known as The Black Album, a record which has remained a sort of crossroads for the legendary hyper thrash/hyper progressive foursome, has for a long time been the best-selling album in the history of Nielsen Soundscan. Now, the record has become the first album to scan over 16 million units in SoundScan’s history.

The Black Album also holds the record for the most weeks spent on the Billboard 200 chart in the Nielsen SoundScan era, perched high up atop that vaunted spot for a mind-boggling 307 weeks and counting, as well as being the third-longest charted record in Billboard history. This distinction makes The Black Album only trail behind only two other seminal and influential records which hold the number one and two spot in that category — Pink Floyd’s sonic landmark Dark Side of the Moon and singer/songwriter Carole King’s emotional and complex pop music magnum opus Tapestry respectively. It’s also the sixth longest-charting album of any kind in Billboard history.