The camp New York outfit outsold Keane’s debut album ’ Hopes And Fears’ by just 582 copies.
The news will come as a shock to the Battle three-piece, who were named by BBC Radio 1 as the year’s best seller in a broadcast on New Year’s Eve (December 31).
Robbie Williams’ greatest hits compilation came in third, followed by Maroon 5 and Katie Melua.
Chairman Lucian Grainge commented: : “It’s a fantastic result, but what is most special is that the two biggest-selling albums of the year are both from brand new UK-signed artists.”
[a][/a] was the best selling artist in 2003.