Adele has the biggest selling album in the world Adele Tue-15-May-12 13:02 Share this By Jay-Jay Feeney ADELE has become the fourth British star in five years to record the world's biggest-selling album. After selling 18 million copies (and still counting) of her album 21, she owns 1.6 per cent of total album sales around the world. Other Brits who have achieved this before her were Amy Winehouse, Coldplay and Susan Boyle. You May Also Like Who is the most popular singer to listen to at work? Scientists have found the World's Most Perfect Love Song... yup Adele is becoming music royalty… sort of Become a fan of The Edge on Facebook and on Twitter .