Facts all about:
Birth name Niall James Horan
Birthday 13 September 1993
Star sign Virgo
Birthplace Mullingar, County Westmeath
Before finding fame with One Direction, Niall Horan was born to parents Maura Gallagher and Bobby Horan in 1993, a younger sibling for brother Greg.
Niall became an uncle when Greg welcomed a son named Theo with his wife Denise in July 2013. He'd played the part of best man at the couple's wedding in March 2013.
He's is the only Irish member of 1D.
Niall has always been musical - he was in the choir at his school Coláiste Mhuire and has played the guitar since a young age. He's often seen strumming away during gigs.
In 2010, Niall auditioned for The X Factor. He performed the hit song So Sick by Ne-Yo.
He was put through to the next round but failed to make it through to the judges' houses stage as a solo contestant.
However, his fortunes changed when he was put into group One Direction. Niall Horan instantly formed a bond with new bandmates Harry Styles, Louis Tomlinson, Zayn Malik and Liam Payne.
The boys enjoyed a series of successful live shows and ended up coming third in the competition. They were unfortunately voted out behind Matt Cardle and Rebecca Ferguson in the final.
Since then, Niall has been living the dream. The group have clocked up a number of hits in the UK and overseas and have toured around the world.
In 2012, excited One Direction fans hoped Niall Horan would make US X Factor judge Demi Lovato his girlfriend after they enjoyed a flirt on Twitter.
He's also been linked to gorgeous stars including Victoria's Secret model Barbara Palvin, singer Ellie Goulding and Coronation Street actress Brooke Vincent.
Niall is an avid sports fan and has had the chance to meet a number of his idols, including rugby legend Brian O'Driscoll and golfer Justin Prose.
He trained alongside football star Cristiano Ronaldo when 1D were in Madrid in 2013.
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Niall Horan pictures
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Niall Horan videos
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