It looks like One Direction are set to become a worldwide phenomenon after their debut single What Makes You Beautiful reached over 50 million views on YouTube.
No doubt the boys' Stateside visit caused hits to dramatically increase - they proved so popular with the Americans that the band decided to bring forward the release of their debut album Up All Night to 13 March.
And their upcoming tour with boy band Big Time Rush surely means they're set to get even bigger.
'Today is a good day :) and just found out What Makes You Beautiful has over 50,000,000 views on youtube. Massive thank you to everyone :) :),' Tweets Louis Tomlinson, 20.
Watch out, Justin Bieber!
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Yasmin Okolo
