Happy fifth anniversary, One Direction!

It's hard to believe it's been five years since the former fivesome were put together on the "X-Factor," but a lot has happened in between. Yet, one thing that has always remained constant: their fans.

Directioners have been by their side through all the ups and downs, from their number one albums, to Zayn leaving the group, and they've never wavered in their love and support, which has not gone unnoticed by the group.

Directioners took to Twitter to commemorate this milestone year, so take a look at all the ways fans are celebrating five years of One Direction.

Fans went all the way back to the beginning.

To the day it all started.

They showed their love by making videos.

Creating fan art.

And with cake!

Some reflected on all the lessons the guys taught them.

And who could forget all their goofy moments?

Well, this might make you cry.

Of course, they showed love for Zayn.

It's been a crazy ride.

That went by really fast.

But they did a lot.

And things have changed.

But the fans have always stayed by their side.

Congrats, 1D! Here's to another five years!