While there is no direct indication as to who she is referring to, the fandom is pretty convinced that this is a call out for Scooter Braun and Scott Borchetta about their recent disputes about the masters of her six albums. The intervening years have seen Swift ascend to the highest echelon of pop stardom, but now the singer's fans will have the opportunity to journey back to those early days.
The live concert incidentally marked her first public appearance since she got embroiled in a battle with Braun over his purchase of Big Machine Records, a label through which she launched her career.
Taylor was the headlining act for Amazon's Prime Day Concert and during her performance of "Shake It Off" it's quite obvious that she threw some shade at Scooter when she added emphasis on a statement about cheaters and liars.
During her performance of "Shake It Off", Taylor Swift seemed to aim one of her lyrics at someone she's feuding with. Taylor Swift Called out Scooter Braun or there was no hidden meanings behind this.
Check out how Twitter is reacting to Swift's Prime Day concert below.
Swift took the stage by storm in a sparkling romper, decorated with black and purple sequins and vertical stripes.
Many think, yes, she did.
The US singer left the label and signed with Universal Music Group in November, saying she knew that re-signing with Big Machine - which had managed her since she was 15 - would result in her not owning her future work.
"Um, I'm not a fan of Taylor Swift".
The moment started trending on social media with fans mentioning that it was a dig to underline her feud with Braun. The crowd went absolutely wild when Swift asked the live audience if they'd like for her to perform the new single for the first time ever.