Adele's Bond theme song has been beaten to the top of the official UK singles chart by Swedish House Mafia.

The dance group's song Don't Worry Child, which features John Martin, was locked in a battle for the top with the British singer's Skyfall all week, but the Swedes have grabbed the number one spot with the London singer up to number two, the Official UK Charts Company said.

Last week's number one, Rihanna's Diamonds, slipped to number four, while Psy's global phenomenon Gangnam Style held on to a top three place.

Meanwhile, folk four-piece Mumford & Sons regained the top spot in the albums chart with Babel, knocking Muse's The 2nd Law out of the number one position.

Mumford & Sons' debut album Sigh No More, released over three years ago, kept a top 20 position, climbing from 13th to 12th in the chart.

Ellie Goulding's Halcyon was a new entry at number two and Jeff Lynne, the Electric Light Orchestra frontman, had a top 10 album with his solo record Long Wave, in at seven, while his band's greatest hits compilation entered the chart at eight.

Further down the chart, critics' darlings Tame Impala scored a top 20 album with their psychedelic rock effort Lonerism, new in at 14.