TAYLOR Swift has been sneaking around with a new man — and the romance has been revealed on social media.

Rumours are swirling that she’s dating newly buff DJ Calvin Harris, and their secret dates have been captured by crafty fans on social media.

Taylor Swift was a surprise guest at Kenny Chesney’s Nashville concert over the weekend. But when her on stage duties were over, she was spotted cuddling and holding hands with the 31-year-old Scottish DJ.

Taylor and Calvin Harris. (Be cool) pic.twitter.com/v4ynFWiBwU

— TaylorTunes (@TaylorTunes) March 27, 2015

@CalvinHarris holding @taylorswift13 #calvinharris #taylorswift ???????????? pic.twitter.com/Sn0SzZMNG4

— Sydnie (@sbbieberfever) March 27, 2015

TMZ has also obtained footage of the pair leaving the concert holding hands.

And while the footage is grainy — there’s no doubting it’s Calvin and Tay.

Watch out, Calvin. You may be the subject of a Tay Tay song if it doesn’t end well.