Que the vindictive breakup songwriting!

Taylor Swift and Calvin Harris have called it quits after more than a year of dating, People reports. "There was no drama. Things just don't work out sometimes," an insider explained to the mag. “It just wasn’t working anymore. She’s OK," a second source echoed to Us Weekly. It's still unclear who pulled the plug on the relationship, but we have our guesses...

The pair first made their public debut as a couple at the Billboard Music Awards in 2015, and recently celebrated their one year anniversary with a tropical vacation in March. The lovebirds were last photographed driving around LA together on May 5.

We bet she now regrets gushing about her man in the April issue of Vogue! "I'm just taking things as they come. I'm in a magical relationship right now. And of course I want it to be ours, and low-key … this is the one thing that's been mine about my personal life," she told the fashion glossy.

The Scottish DJ better be prepared to be torn apart in a new song, because Harry Styles, Jake Gyllenhaal, John Mayer and a host of others have already learned the hard way!

Part of us wonders if T-Swizz was the one doing the heartbreaking, though, because rumors have been quietly swirling about her flirtation with Tom Hiddleston ever since they had a dance-off at the Met Gala in the below video. We will find out soon enough!