He became famous as a member of One Direction, one of the best-selling boy bands in history formed on The X Factor in 2010.

Niall Horan was born on September 13, 1993, in Mullingar, Ireland. He rose to fame as a member of One Direction, formed in 2010 on The X Factor, which became one of the best-selling boy bands of all time with five albums. After the band's hiatus in 2016, he launched a successful solo career with Capitol Records, releasing three albums: Flicker (2017), which debuted at No. 1 in Ireland and the US; Heartbreak Weather (2020); and The Show (2023), which topped charts in seven countries.

Growing up in Mullingar, Westmeath, Ireland, Horan taught himself guitar at age 11 using YouTube tutorials after his older brother Greg received one as a birthday gift. His aunt discovered his singing talent when she thought the radio was on while he sang in her car. As a teenager, he performed at local venues including the Mullingar Arts Centre and supported X Factor contestant Lloyd Daniels at the Academy club in Dublin before auditioning for The X Factor in 2010 at age 16.

Horan's parents, Bobby Horan and Maura Gallagher, divorced when he was five, and he eventually moved in with his father along with his older brother Greg. He is not married and does not have children. He is in a relationship with Amelia Woolley, a fashion buyer. Born under the Virgo zodiac sign, Horan stands approximately 5'8" tall and maintains interests in golf and association football alongside his music career.