The late Amy Winehouse's acclaimed second and final album Back to Black has become the UK's biggest seller of the 21st century, according to data from the Official Charts Company.

The company said the 2006 record, which included such hits as Rehab, Back to Black and Love Is a Losing Game and netted Winehouse five Grammys, had sold 3.26 million copies, surpassing James Blunt's Back to Bedlam (3.25 million).

Winehouse's album shot back to the top of the British charts following her death aged 27 on July 23.

Dido's No Angel -- released in the UK in February 2001 -- is the third best-selling album of the century with sales of 3.07 million in the UK.