The news comes a week after it emerged that lawyers acting for Swift had applied for various phrases from her chart-topping 1989 album to become registered trademarks, including "this sick beat".

Those applications are still pending, but Swift already owns a long list of trademarks relating to logos and lyrics, meaning that anyone who makes and sells goods featuring those phrases and lyrics could receive a legal challenge.

And BuzzFeed News has learned that this has indeed been happening and that several Etsy stores have received cease and desist letters.