Who sold more albums Backstreet Boys or Judas priest?

The Backstreet Boys have sold over 100 million albums worldwide, including 40 million copies of their 1999 album Millennium, while Judas Priest has sold over 50 million albums worldwide, including 10 million copies of their 1980 album British Steel. Therefore, the Backstreet Boys have sold more albums than Judas Priest.