Big Rup

Big willie style "only" sold ~11 million worldwide and that's by far his best selling album. As fresh prince him and jazz sold roughly ~6 million records. So where is this 60 figure coming from? He makes that claim on the "will" joyner lucas remix, as well as on his feature on Logic's song "Don't be afraid to be different" source: https://bestsellingalbums.org/artist/14234