Amy Winehouse's last album has become the biggest-selling album of the century following the sales boost after she died.
Winehouse's 2006 release Back To Black has now sold 3,259,100 copies according to figures compiled by the Official Chart Company.
James Blunt's album Back To Bedlam, released in 2005, has sold a total of 3,241,118 until now.
The leap came as it was announced today that music legend Tony Bennett would lead a tribute to Winehouse at an international MTV awards event this weekend.
Bennett, who recorded with the singer earlier this year for a track on his next album, will introduce a special section of the MTV Video Music Awards (VMAs) in Los Angeles on Sunday night.
It will include footage of him recording with Winehouse at Abbey Road Studios in March as they sang Body And Soul for his Duets II album. It proved to be her last session.
Winehouse died at her flat in Camden, north London on July 23. Bennett said: "It was a thrill to record with Amy Winehouse and when you listen to the recording of Body And Soul, it is a testament to her artistic genius and her brilliance as one of the most honest musicians I have ever known."
Winehouse's father Mitch said: "Our family is honoured that the VMAs are giving Amy this wonderful tribute."
He said his daughter's performance of hit single Rehab at a previous MTV awards event had contributed to her global success.