One Direction have sold over two million copies of their debut single in the States.
What Makes You Beautiful has been certified as double-platinum in the US after selling 2,060,303 units since February.
The single peaked at number four on the Hot 110 chart, while their debut album Up All Night reached number one in the Billboard 200.
Up All Night has sold over 600,000 copies in the US and has topped the charts in Australia, Canada, Sweden and New Zealand.
One Direction have recently been in Sweden working on their second studio album.
Louis Tomlinson, Harry Styles, Liam Payne, Zayn Malik and Niall Horan are on their way to the US for a 23-date headline tour.
The boys kick off the tour in Connecticut with the tour ending at the start of July. The lads will be supported by fellow X Factor star Olly Murs.
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