Despite winning over audiences around the world, the band finished in 3rd place.
The U.K. band made their SNL debut with an electric performance of their single "One Thing."
The band took home the coveted moonman trophy for Best Song of the Summer for their song "Best Song Ever."
The band gave fans a behind-the-scenes look at live on the road of their This Is Us tour with their concert documentary movie This Is Us.
While attending the Royal Variety Performance, the band met Prince William and Kate Middleton.
In March 2015, Malik announced that he was leaving the band to launch his solo career.
Months following Malik's unexpected split from the band, he found himself in a heated Twitter argument with Tomlinson.
Shortly after Malik's departure, Styles, Payne, Horan and Tomlinson announced that One Direction will be taking an indefinite hiatus.
Tomlinson became a father to his son Freddie Reign in 2016. One year later, Payne welcomed his son Bear Grey with ex Cheryl Cole.
In an interview with The Face Magazine, the "Strip That Down" singer called himself the "Antichrist" of Styles, noting that he only speaks to Tomlinson and Horan since the band officially parted ways.
While hosting SNL in November 2019, Styles jokingly shaded Malik during his monologue, saying, "I love those guys. They're my brothers. Niall, Louis, Liam and uh...Ringo! Yeah, that's it."
Ahead of their highly-anticipated reunion, fans suspected that a reunion of sorts was underway when Styles, Payne, Tomlinson and Horan all started following Malik on Twitter again. Others pointed out that the "PILLOWTALK" singer was also no longer listed as an "ex-member" of the band on Google and is now back to being listed as "vocals."
Further fueling reunion rumors, Payne told The Sun, "We've got a 10-year anniversary coming up so we've all been speaking together a lot over the last few weeks which has been really nice."