On his birthday, Harry Styles tweets ex-girlfriend Taylor Swift's song lyrics!

One Direction's Harry Styles' created a social media explosion on his 22nd birthday on February 1 with an unexpected treat for the world.

Styles tweeted what seemed a fitting line to mark his special day.

I don't know about you, but I'm feeling 22.

— Harry Styles. (@Harry_Styles) February 1, 2016

However, whether Styles knew it or not, that little tweet sent Taylor Swift fans into a frenzy.

The lyrics happen to be from one of Swift's songs on her album Red. And so as the frenzy, mayhem, craze, call it what you will goes, it gave fans something to get creative with. Many were hoping the pair who dated in the past would get back together, even providing them a name: 'Haylor'.

Check it out:

whaaaat hahaha best tweet ever in my life!!! #haylor https://t.co/KgFXfQTbXF

— Mhaica Crdena (@leemhaica) February 2, 2016

Thank you harry. I ship #haylor
22 :)
Perfect.
Finally we are out of the woods.
Some feelings never go out of style pic.twitter.com/E1huzprPny

— H. (@AtiyehSt) February 1, 2016

I don't about you but i feelling 22#HappyBirthdayHarry #haylor pic.twitter.com/efTm4COBz3

— Follow Me Harry Pls (@dianaalkorde) February 1, 2016

"Haylor is real"
"Haylor is alive" #haylor Me: pic.twitter.com/N883Ckfrqt

— oops&hi (@korneliastyles) February 1, 2016

Harry as Taylor. #haylor pic.twitter.com/iVFemhdwNA

— Taylor Swift (@twlorswift) February 1, 2016

Let's not forget this stunning #Haylor mome. pic.twitter.com/Y9l0mxCmMQ

— Tricia Gilbride (@tricia_gilbride) February 1, 2016

The rest of the world was black and white
But we were in screaming color @Harry_Styles @taylorswift13 #haylor pic.twitter.com/dC7ymXUFTw

— T. (@HolyTaylorS13) January 30, 2016

#haylor IS TRENDING IM LAUGHING SJFJAKKDK IM AO HAPPY GUYS

— Maddie (@MaddieM128) February 1, 2016

But you might have to let that dream go, if you were hoping for a reunion.

Swift is currently dating Calvin Harris and Harry is rumoured to be dating Kendall Jenner.

Read: One Direction's Harry Styles all set for solo journey!