[Iceman]

Adele's 21 has become the biggest-selling digital album to date in the US.

The 'Set Fire To The Rain' singer's second studio album has managed to surpass one million downloads in the US just a week after Eminem became the first artist to do so with Recovery.

21 has now tallied up over 1.017 million downloads compared to Recovery's 1.005m, while Lady GaGa's The Fame and Mumford & Sons' Sigh No More are expected to pass the million digital sales milestone by the end of 2011.

Just under a third (32%) of the 155.5m albums sold in the US in the first six months of 2011 were digital, marking a 19% rise in downloads compared to the same period in 2010, reports USA Today.

Billboard's associate director of charts and retail Keith Caulfield said that Adele is "not just a digital phenomenon", saying: "She appeals to older consumers, who will still buy full albums, and to younger people who may just buy a single track.

"She connects with people in a way where they feel she is a 'full-package artist' and you want to hear everything she sings."

Adele's 'Someone Like You' became the first digital single to pass the one million UK sales mark this decade earlier this month.

The singer-songwriter's first two albums 19 and 21 are currently the top two best-selling albums in the UK this year.