Not only was Adele’s 25 the biggest artist album of 2015, it was the UK’s only million-seller in the entire year.

Official Charts Company data reveals the singer’s third album sold 2.496 million copies from its November 20 release date to the end of the year.

It became the biggest No. 1 album in UK chart history after shifting 800,307 copies in its opening week and crossed the 1m barrier 10 days after going on sale. By day 29, Adele ...