'21' has spent 18 non-consecutive weeks 'atop' the UK album chart since its release in January 2011, amassing 3.8m sales in the process. The feat is currently equalled by the chart run of the Saturday Night Fever OST in 1978.
Simon & Garfunkel’s' Bridge Over Troubled Water' holds the overall record of the most weeks ever at Number One when it racked up 33 weeks during eight runs between 1970 and 1971.
Adele's quite popular record received a sales boost this week following BBC's blubathon screening of Adele Live At The Royal Albert Hall and is currently outselling Bruno Mars' 'Doo-Wops and Hooligans' by 5,453 units according to Music Week.
More 'Adele sells music' news soon, we promise.