He felt that living in Mullingar was the easiest thing to do at the time, because all of his friends were there.
Niall's stepfather is from England, and he has family there.
At bootcamp, Niall sang "Champagne Supernova", but failed to qualify for the "Boys" category.
After a suggestion from guest judge Nicole Scherzinger, Niall was put into a group with four other boys, who also failed to move on in the competition.
Niall was born in Mullingar, County Westmeath, Republic of Ireland to Bobby Horan and Maura Gallagher. Bobby and Maura divorced in 1998 when Niall was five years old.
He lived in both parents' homes before finally settling with his dad.
Louis Walsh was in his favor, but Cheryl Cole and guest judge Katy Perry, felt he needed some time to grow.We’ve got 2 very distinct patterns that set off alarm bells in my mind. Some of these like Carly Rae Jepson we can trace back as being completely organic happenings as well.There are also some like Katy Perry that were never taken particularly seriously despite a decent amount of articles.Simon voted to let him through, Cheryl said no, and Louis quickly added in his yes, and left Niall's fate up to Katy.She decided to vote yes, and Niall was put through to bootcamp.