She said they were never EVER getting back together but it looks like the One Direction star could be trying to win our Pop Princess back! Here's why the dating rumours have gone into overdrive!
It's been almost TWO YEARS since Harry and Taylor called it a day on their relationship, but now a reunion could be on the cards after Harry apparently reached out to Taylor (with flowers!).
Well, when we say 'hidden', one of the songs is called 'Style', so take from that what you will.
From fellow Brit Daisy Lowe to American model (and half Kardashian) Kendall Jenner, Harry's definitely kept himself busy. But clearly he's still got Taylor on his mind...
Harry revealed during a One Direction live stream: “We write from personal experience, and I think everyone does, so it would be hypocritical of us to be like, 'Oh you can’t write about us.' And she's really good, so they’re good songs... I’m really lucky in that sense." Picture: Rex
Harry and Taylor met for the first time at the Nickelodeon Kids' Choice Awards in Los Angeles, where One Direction were performing.
Justin Bieber - a close friend of both stars - dropped the first hint that Taylor had a crush on Harry, cryptically revealing in one interview that "one of the biggest artists in the world thinks Harry is so hot, but I have been sworn to secrecy".
Fast forward to October and it appeared that Harry had mutual feelings for Taylor, gushing about her in an interview with Seventeen magazine: "[Taylor]'s a really lovely girl. Honestly, she couldn't be a sweeter person. She's a great girl and she's extremely talented." He added that the song 'We Are Never Ever Getting Back Together' was just "amazing".
Their romance was still unconfirmed at this point, but that didn't stop Harry from going to watch Taylor rehearse ahead of her performance on The X Factor USA.
Harry and Taylor became a couple - or Haylor as #Directioners christened them - officially when they went for a very public stroll through Central Park in New York, where they watched some sea lions in the famous zoo. Picture: Splash
A day later and Taylor was filmed singing karaoke with Harry after One Direction's performance at Madison Square Garden in New York. Ed Sheeran - another mutual friend - was also up on stage with the pair. Picture: 1DUpdtesAU Twitter
Harry was spotted spending a second night with Taylor Swift at her hotel. It's getting serious! Picture: Splash
Mutual friend Ed Sheeran gave the biggest hint yet that Harry and Taylor were an item, simply smiling when asked about the couple on US TV.
Despite both being busy with their own promotional duties, Harry and Taylor found time to have dinner together in New York before something very special happened… Picture: Splash
Yes, just two days later, Taylor flew in to London by private jet with Harry to watch One Direction perform at Capital FM's Jingle Bell Ball. She hung out backstage with a host of stars, including Lawson. Picture: Twitter
It's official! Olly Murs confirmed that Harry Styles was dating Taylor Swift during a game of snog, marry, avoid. Picture: INF.Photos
Only two days after the Jingle Bell Ball and Haylor were back in New York, where they were spotted kissing at a US radio event.
What did Carly think of Haylor? "It's cute," she told Capital. "I mean, of course I'm happy for them!"
What do you get your girlfriend of four weeks? Well, if your name's Harry Styles and your girlfriend's Taylor Swift you apparently buy her some customised cupcakes. Wonder what they said on them? Here they are with some birds! Picture: Twitter
The jet-setting couple returned to the UK in the middle of December for a trip around Harry's home county of Cheshire. They were spotted on several dinner dates during the whirlwind visit. Picture: Flynet
Harry was spotted taking Taylor to the airport following their break together in the UK. Picture: Barcroft
But the One Direction star wasn't far behind - two days later he was spotted grocery shopping with Taylor and her mum in Los Angeles. Picture: INF Photo
Following One Direction's performance on The X Factor USA, Haylor jetted to Utah for a skiing trip. Several fans managed to take pictures of the happy couple on the slopes. Twitter: @edreher:
After their brief trip to America, Harry jetted back to the UK for Christmas with his family, but apparently Haylor hung out on Skype while they were apart. Picture: Splash
Haylor reunited ahead of Taylor Swift's performance in Times Square, New York on New Years Eve and marked the reunion with their first public kiss as the clock struck midnight. Picture: Taylor Swift
Another week, another holiday! Harry and Taylor were spotted by fans in Caribbean, where they soaked up the rays as the New Year got under way. Picture: Twitter
Uh oh! Harry was spotted jetting back to the UK - alone - on the same day One Direction released their new video for 'Kiss You'. He was all smiles when he met fans at the terminal. Picture: Xposure
It's over. Haylor were reported to have broken up following a row on their holiday in the British Virgin Islands. Taylor was pictured alone on the back of a boat and posted the song lyrics - "...'til you put me down" - on Twitter. Picture: Splash
According to NW magazine, Harry has been 'plaguing' Taylor with texts and even sent her 1,989 (we see what he did there) roses. Are Haylor soon to be reunited? Picture: Rex