The group registered 146,405 sales this week bringing the total number in the US to 2,060,303.
Since its release in February the single has peaked at No.4 on the Billboard Hot 100 and was recently featured on an episode of Glee.
In the process of breaking America, the four-piece became the first ever UK band to debut at No. 1 on the US Billboard Chart with their first album Up All Night. To date, the record has sold in excess ...
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