Once the quieter member of One Direction in the early days, Harry Styles grew in confidence alongside his bandmates and soon the five down-to-earth boys were catapulted into the world of fame. Guest X Factor judge Nicole Scherzinger – with a little help from resident choreographer and creative director Brian Friedman – plucked Niall Horan, Louis Tomlinson, Zayn Malik, Liam Payne and Harry from bootcamp and put together her boyband prototype. By the time The X Factor was down to its final four acts, One Direction were already stars.