THEN AND NOW: The members of One Direction

• Boyband One Direction (1D) formed in 2010 during an episode of the British reality show "The X Factor."
• The group, consisting of Harry Styles, Niall Horan, Liam Payne, Louis Tomlinson, and Zayn Malik, has released five albums. 
• On March 25, 2015, Zayn Malik officially left One Direction and the four remaining members continued to release music. 
• One Direction took a hiatus from music in 2016 but each of the band's members has continued to pursue a solo career.

Pop boyband One Direction (1D) was formed by music mogul Simon Cowell in 2010 during an episode of the British singing competition series, "The X Factor." Consisting of Zayn Malik, Louis Tomlinson, Liam Payne, Niall Horan, and Harry Styles, One Direction came in third place during their season of the show. 

Although they didn't win the show, the band went on to have an illustrious career. One Direction released five albums in five years and toured the world from 2011 to 2015. The band won countless musical awards and appeared on various TV shows from "Saturday Night Live" to "iCarly." They performed at the Olympics closing ceremony in 2012. and, in 2013, the band released "One Direction: This Is Us," a live concert film that premiered in theaters around the world.

After years of touring the world and recording music, One Direction took an indefinite hiatus in 2016. And in the past few years, the band's five initial members have come a long way in terms of their solo careers. 

Here's how the members of One Direction have changed since their auditions on "The X Factor" to now.

Zayn Malik initially had a rough time on "The X Factor."

17-year-old Zayn Malik, a native of Bradford, England, auditioned for "X Factor" by singing Mario's hit song "Let Me Love You." The judges unanimously advanced Malik to the next round of the show but the singer nearly sabotaged his chances of moving forward when he refused to perform in the choreography round of the series that followed. In an interview, he said he hated dancing and had never done it before.

After a pep talk from Simon Cowell, one of the show's judges, Malik went through with the dance performance that would eventually help to lead him to his union with the other future members of One Direction.

Malik has released two solo albums since he left One Direction in 2015.

On March 25, 2015, Malik left One Direction and the remaining band members continued to tour and record an album without him.

"After five incredible years Zayn Malik has decided to leave One Direction. Niall, Harry, Liam and Louis will continue as a four-piece and look forward to the forthcoming concerts of their world tour and recording their fifth album, due to be released later this year," said the announcement from the official One Direction Facebook page.

In January 2016, less than a year after his departure from 1D, Malik released his first solo album, an alternative R&B record called "Mind of Mine." The album featured his hit single "Pillowtalk."

In November 2016, the singer released his first and only book, "Zayn: The Official Autobiography." The book is a photographic journey detailing Malik's life after leaving One Direction. 

In 2017, Zayn Malik released the hit single "I Don't Wanna Live Forever," a duet with Taylor Swift that's part of the soundtrack for the film "50 Shades Darker." 

In December 2018, Malik released his second album, "Icarus Falls." The disc includes collaborations with fellow industry moguls like Sia and Nicki Minaj.

Louis Tomlinson had a small role in a movie before auditioning for "X Factor."

The Doncaster, England, native is the oldest member of One Direction and he auditioned for the "The X Factor" when he was 18 years old. For his audition, Tomlinson performed The Plain White T's song "Hey There Delilah" and earned a unanimous "Yes" from all of the judges.

Prior to auditioning for the competition series, Tomlinson had taken on an uncredited role in the made-for-TV movie "If I Had You."