With One Direction, Niall has sold over 14 million singles and 8 million albums. Their records have topped charts in more than sixteen countries, they have won two BRIT awards and and three MTV Video Music Awards, embarked on sell-out concert tours, and become a business empire with an estimated value of $50m. Niall's personal wealth is estimated at £5m.

Niall Horan: The Unauthorized Biography is the story of how a short, smalltown Irish boy shot to overnight national and then global fame. Born in Mullingar, County Westmeath, Niall's early years were difficult as he and his older brother endured the breakdown of their parents' marriage and subsequent divorce. Living between each of his parents' home for the next few years before eventually settling with his father, it was in this period that Niall embarked upon his remarkable musical journey. Stints in the school choir and performances around his homeland, including in support of Lloyd Daniels in Dublin, propelled him to The X Factor and his first brushes with fame. Nothing could have prepared Niall for the adulation and success that followed.

Written by Danny White, the author of the Sunday Times bestseller 1D: The One Direction Story, the book reveals how Niall quickly transformed to become as popular as leading light Harry Styles.