Adele's unstoppable 21, which is closing in on 9 million in sales in the U.S. (making our prediction that it will likely become the first diamond record in the states since Usher's 2004 Confessions set on the nose), just blasted past Michael Jackson's 1982 classic Thriller on the U.K. all-time bestseller list, according to NME.

21 is now the fifth best-selling album in the U.K. with staggering sales of 4,274,300 copies since its release in January 2011, besting Thriller's sales by about 500 units.

Her sales are not that far off the next two albums – Oasis's What's the Story Morning Gloryand ABBA's Gold: Greatest Hits – on the list either, though she's got a ways to go before she reaches the list's top two spots, which are owned by The Beatles' Sgt. Pepper's LonelyHearts Club Band at #2 (5.04 million) and Queen's Greatest Hits at #1 (5.83 million records sold).

In the 15 months since its release, 21 has spent 65 non-consecutive weeks at #1 in the U.K. and, having outsold Amy Winehouse's Back To Black, is the top selling album of the 21st Century in the country.