It's been five years since Liam Payne, Zayn Malik, Louis Tomlinson, Niall Horan and Harry Styles were put together into a group on The X Factor.
The then teenagers were nothing more than strangers at the time.
They've taken over the world since. Here's some of their best moments over the past five years.
1. When they shared the stage with Rolling Stones legend Ronnie Wood on The X Factor.
2. When Harry twerked at the TCAs.
3. When Liam was Niall AF on Twitter for #BeAFan day.
4. That crybaby Zeflie that went down in history.
5. When they showed up at the red carpet for their This Is Us movie premiere.
Really, when they showed up at any red carpet.
6. All the love shared between Lilo over the years.
7. When Zayn transformed into a really hot girl for the Best Song Ever video.
8. That time Liam kinda went commando.
9. The holy grail that was the video diaries.
10. This positively sinful photo of a wet Louis.
11. That time Niall danced around in his tighty whities.
12. That time they swapped outfits during the Up All Night tour.
13. When baby Theo was born.
14. That time in 2011 when Louis almost killed Harry.
15. This train wreck hot mess of a video that was their reindition of Jason Derulo's "Talk Dirty".
16. That time Harry stepped into Zayn's spotlight.
17. When Liam let us know the truth about Harry.
18. When Ziam was alive and cuddling...
19. The famous Narry pool day.
20. That Staples Center tumble that Liam and Louis will never live down.
21. When they let their freak flag fly on Saturday Night Live.
22. When they went to Ghana in support of Comic Relief and Red Nose Day.
23. When Liam made the best possible comment about Zayn at the Billboard awards after he left the band.
25. When they were the biggest selling artist of 2013.
Happy 5th anniversary, boys! Here's to many more!
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