One Direction: Their Massive Transformation Over The Years

Niall Horan, Harry Styles, Zayn Malik, Liam Payne and Louis Tomlinson joined forces on Britain's 'The X Factor' show in the summer of 2010. The teen group at the time announced their hiatus in 2016 and have since each experienced varying degrees of success as solo artists and in their private lives as adults.

In 2011, One Direction released their first album, 'Up All Night', in the UK. The album was re-released in the US in 2012, leading to worldwide success with singles such as 'What Makes You Beautiful' and 'One Thing'.

One Direction made their U.S. television debut on NBC's 'Today' show at Rockefeller Plaza on March 12, 2012. Niall Horan, Louis Tomlinson, Zayn Malik, Liam Payne and Harry Styles were greeted by their fans with great enthusiasm and affection.

One Direction released the music video for 'Night Changes', from their album 'Four', in November 2014. This would be the group's last music video with the five original members, being also the last One Direction video with Zayn Malik.

One Direction has taken a step further in distancing themselves from former bandmate Zayn Malik by changing their official social media profile pictures. The new profile picture for One Direction features only the remaining members - Louis Tomlinson, Niall Horan, Harry Styles, and Liam Payne.

Zayn Malik made headlines in March 2015 when he decided to quit 'One Direction' in the midst of the group's 'On The Road Again' world tour. He denied any rumors of conflict with the group and cited his desire to "relax and have some private time out of the spotlight" as the reason for his departure. However, in July of the same year, Zayn announced that he had signed a contract as a solo artist with RCA Records. In addition to music, Zayn has also dabbled in fashion, collaborating on lines with Versace, Giuseppe Zanotti, and The Kooples.

After 'One Direction' announced their hiatus, Louis Tomlinson released a collaboration with DJ Steve Aoki titled 'Just Hold On'. The emotional song, dedicated to his late mother, became a huge hit in the UK and on the US dance music charts. He then signed a record deal with Simon Cowell's Syco Music and released 'Back to You' alongside Digital Farm Animals and Bebe Rexha in 2017. His debut album, "Walls," was released in January 2020 and reached the top 10 on both sides of the Atlantic. However, Louis left Syco Music in the summer, although he assured fans that he was still working on new material. The soccer fan joined professional soccer club Doncaster Rovers in England during the 2013-2014 season, working around his commitments to 1D. Louis began dating Eleanor Calder in 2011, and although the two were on a hiatus in 2015, the star had a son with stylist Briana Jungwirth. Louis and Eleanor reunited in 2017 and are still together.

After announcing their hiatus, One Direction's Harry Styles signed a solo artist contract with Columbia Records. In 2017, the Redditch-born singer released his eponymous debut album, a mix of soft rock, Britpop, and pop that was nothing like the sound of 1D, yet topped the charts in 14 countries. Since then, Harry Styles has become a successful pop singer, fashion icon, and even actor. His publicized relationship with Olivia Wilde, who directed him in the upcoming movie 'Don't Worry Darling', made headlines in 2021.

Liam Payne announced his solo artist deal with Republic Records in 2016 and released his debut single, 'Strip That Down', the following year. In 2020, Liam continued to work on his solo career, releasing a collaboration with DJ Alesso, starting a weekly YouTube series, and hosting a live-streamed concert for his fans called 'The LP Show'. Liam has been in the media spotlight for his relationship with singer and former 'The X Factor' judge Cheryl Cole.

Niall Horan signed a solo artist deal with Capitol Records in 2016 and released his first single, 'This Town', that same year. He followed it up with 'Slow Hands' in 2017, which became a massive hit on both sides of the Atlantic, selling over 3 million copies in the US alone. His first album, 'Flicker', was released in October that same year and debuted at number one in the US, eventually certified platinum with over a million copies sold. Niall released his second album, 'Heartbreak Weather', in March 2020, which debuted at number one in Britain.