How can that be five years already?! They’ve topped charts worldwide, released four albums and have millions of screaming fans wherever they go and this week, One Direction are celebrating five years together.

We have been a band for five years. And it is impossible to thank anyone enough for all the support they have given us over this time..

— Harry Styles. (@Harry_Styles) July 22, 2015

All the crew that we have been so lucky to work with, and everyone who is behind the scenes. We thank you for everything that you do. — Harry Styles. (@Harry_Styles) July 22, 2015

To you who support us, in any way, thank you. We wouldn't be here without you. You did this and we thank you for having us. All the love

— Harry Styles. (@Harry_Styles) July 22, 2015

Every single day we are thankful for the platform that you incredible people gave us . What an amazing 5 years it's been !! — Louis Tomlinson (@Louis_Tomlinson) July 23, 2015

You have been by far the most incredible fanbase and nothing you do goes unnoticed . We are so lucky to have you guys ! Thanks so much :)

— Louis Tomlinson (@Louis_Tomlinson) July 23, 2015

Thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you — Louis Tomlinson (@Louis_Tomlinson) July 23, 2015

The band were put together on the 2010 X Factor and the lads have taken to Twitter to mark the occasion, though to be fair, we think their fans' tweets have won the day. Indeed the world famous fandom have #5YearsOfOneDirection trending on social media and some of the messages are absolutely priceless. Despite Zayn Malik's departure recently, they remain loyal to the core, and here's just some of our favourites:

5 YEARS. They are the best thing that's ever happened to me and I couldn't be prouder of them #5YearsOfOneDirection pic.twitter.com/h5M7keuSSL

— raquel (@94heslight) July 23, 2015

#5YearsOfOneDirection pic.twitter.com/6kfdtL5iKI — 5 YEARS! (@PKoczkodaj) July 23, 2015

Promise that you will stay #5YearsOfOneDirection https://t.co/71JZo3bK0v

— ℋαяяу||5 уєαяѕ (@xStylesmiles) July 23, 2015

Still rembes when louis' hair when in x-Factor is the worst hair i ever seen @Louis_Tomlinson #5YearsOfOneDirection pic.twitter.com/qR6LTia9eq — 1DyeahINA (@1DyeahINA) July 23, 2015

The moment where it all happened These boys were going to become big but they didn't even know #5YearsOfOneDirection pic.twitter.com/YpqUyQG4pA

— thank you boys! (@niallxangelx) July 23, 2015

#5YearsOfOneDirection pic.twitter.com/fDhg9LmEeP — 5 years (@settledownjhx) July 23, 2015

Yes, they were five. Yes, they shined together. Yes, he left. No, they'll never stop shining #5YearsOfOneDirection pic.twitter.com/EZb3PPn8xV

— 5 YEARS (@flawlessbobby) July 23, 2015

officially #5YearsOfOneDirection in CA!!! thank you so much for everything!! I'm so proud of you all!!! pic.twitter.com/tzOYQOi72C — 5 Years of 1D (@musical_mary21) July 23, 2015

#5YearsOfOneDirection pic.twitter.com/0BxSDeQNlm

— Jasmine Abyaz (@jasmineabyaz) July 23, 2015

NOT JUST A BAND TO ME... THEY'RE MORE THAN THAT #5YearsOfOneDirection pic.twitter.com/QMvRtELaN6 — Emily (@Emilyxx_1D) July 23, 2015

4 albums. 5 tours. 188 awards. 5 years #5YearsOfOneDirection pic.twitter.com/QcHgv5wKMj

— nat (@daggertattooH) July 23, 2015

Просто спасибо спасибо спасибо #5YearsOfOneDirection pic.twitter.com/EGhhBbYPx7 — 5YearsOfOneDirection (@MaryMdautova) July 23, 2015

Here's to 5 incredible years #5YearsOfOneDirection https://t.co/2U6Vz2UCZ8

— indya (@indyakachela) July 23, 2015

And don't forget, here's how it all began... https://youtu.be/tJTtpFzlfxQ Video via YouTube/Alyssa Chavez