Niall Horan, Liam Payne, Harry Styles, Louis Tomlinson, Zayn Malik

One Direction, shortened to 1D, are an English-Irish pop boy band formed in London, England in 2010. The group consists of Niall Horan, Liam Payne, Harry Styles, Louis Tomlinson and former member Zayn Malik who departed from the group in March 2015.