According to HollywoodLife.com, the "Shake It Off" hitmaker is motivated to write a diss track in response to Kanye's explicit line about her.
A source tells the site "She had things relatively shut down after the tour to relax and just have quality time with Calvin [Harris], care for her Mom and hang with her cats but with the Grammy Awards and Kanye dropping his shade on her it has awoken the beast so to speak and she is now in full writing mode."
"It comforts her to create music in times like this and now Taylor Swift fans can thank Kanye for getting her motivated again sooner than she expected to write more music," the source adds.
Kanye rapped during his Yeezy season 3 at New York Fashion Week on Thursday, February 11, "I feel like me and Taylor Swift might still have sex, I made that b-tch famous." According to the site, the song stunned Taylor who's "appalled and horrified that Kanye would say something like that on a record about her. She's convinced he only dropped her name in his lyrics because it would gain the attention he wants to sell records."