Calvin Harris' new track Ole reportedly refers to Taylor Swift cheating on him.
It is believed that the 26-year-old singer started dating Tom Hiddleston, 35, after breaking up with Calvin, 32, but his new song, written from the point of view of the other man, appears to hint at a cheating woman.
According to TMZ, lyrics include: "I see online that you begun to be a good girl and take trips with your boyfriend. Being attentive, continue to pretend ...
"You've hidden my name in your phone so you can call me to tell me you've been going through hell. Left him alone and you booked in a hotel."
The song also seems to reference Tom's character from the Thor movies, Loki, with the words: "Low key you won't tell none of your friends about me."
Harris is set to release the song - which features John Newman -later today and the pair filmed the music video in Mexico last week.
Harris and Swift first met at the Met Gala in New York in May before she and Calvin confirmed the end of their 15-month romance in June.
After the break-up was revealed, Calvin took to Twitter to insist the split was amicable.
He wrote: "The only truth here is that a relationship came to an end & what remains is a huge amount of love and respect (sic)."
However, after her romance with Hiddleston was revealed, Harris deleted all pictures of Swift from his social media accounts.
Hiddleston and Swift have enjoyed a whirlwind romance, recently jetting to Nashville so he could meet her parents, followed by a trip to the UK for Swift to get to know his family.
Hiddleston was also introduced to her squad at Swift's annual Fourth of July bash at her Rhode Island home.
- Bang! Showbiz