Louis Tomlinson and Harry Styles met on The X Factor in 2010

Louis Tomlinson shocked his 2,226,388 Twitter followers on 1 April yesterday when he revealed that he's going to be a dad.

Many presumed the One Direction star and model girlfriend Eleanor Calder were to be parents - but then The X Factor followed Louis's Tweet with shock news that band mate Harry Styles, 18, was the one expecting his child.

'We can confirm that @Harry_Styles IS pregnant. If it's a girl he's calling it Anne. If it's a boy, Juan Direction Styles. #HarrysPregnant,' Tweeted The X Factor.

'#CongratsLarryForTheBaby a welcome addition to the #XFactor family. ;-).'

Harry and Louis, whose bromance has earned them the nickname Larry Stylinson, last week laughed off rumours they were in a relationship.

But the baby hype soon calmed down when joker Louis came clean.

'April fool :),' Tweeted Louis, 20.

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