Calvin Harris
Calvin HarrisReuters

Calvin Harris is reportedly feeling all threatened and insecure by one of Taylor Swift's former flames. And it's none other than Harry Styles. Apparently, Harris has been forced to ask Styles to back off his lady.

The Swift-Harris-Styles love triangle is just heating up with every passing day. And all the three artistes seem to be making it to the headlines in their own ways. While Harris and Swift's relationship is all over the web, the One Direction singer has been in the news for being the next in line to quit the band.

Actually there is a good chance that many of us may have forgotten about the Haylor (Harry and Taylor) fling, but looks like the DJ is still very threatened by Swifty's past. According to the latest report by OK! Magazine Harris is being super-protective of Tay and ordered Styles to stay away from their relationship. "He's not usually the jealous type, but Taylor's history with Harry has Calvin's back up big-time, because he knows how charming Harry can be and what an impact he had on Taylor," the report stated.

Apparently, the Scottish-born DJ was very jealous when the "Shake It Off" singer confessed about keeping it a secret that she and Styles were still hooking up until recently even though they called it quits in 2013. "...and Calvin appreciated her honesty," the source added.

Though Harris seemed all cool about the confession, looks like he is secretly worried about being compared to the One Direction singer. "There's no doubt he's threatened," the insider added. "He's made Harry aware in no uncertain terms that he needs to stop sniffing around Taylor and to stay the f*** away."

Looks like the DJ is spinning it loud and clear. Styles better watch out.