Back in Black is the seventh studio album by Australian hard rock band AC/DC, released on 25 July 1980. Back in Black was the first AC/DC album recorded without former lead singer Bon Scott, who had died at the age of 33 on February 19, 1980. The band considered disbanding following Scott's death, but ultimately decided to continue and shortly thereafter hired Brian Johnson as their new lead singer and lyricist. Robert John "Mutt" Lange, who had previously worked with AC/DC on Highway to Hell, was again brought in to produce. The album was remastered and re-released first in late 1994, then again in the Bonfire box set in 1997, and as part of the AC/DC Remasters Series in 2003. In addition, a Dualdisc version was released in 2004, featuring the album in enhanced LPCM Stereo format and the video documentary The Story of Back in Black. The album is estimated to have sold 42 million copies internationally, making it the second best selling album of all time. It is also the Highest Selling Album by an Australian Music Act of all time. It was also certified 22 times platinum in America by the RIAA on 12/13/2007