According to Microsoft’s president, the singer already had trademark issues with the company’s US version of the Chinese chatbot XiaoIce, before it was plugged into Twitter – and became a Nazi.

Taylor Swift has claimed ownership over many things. In 2015, she applied for trademarks for lyrics including “this sick beat” and “Nice to meet you. Where you been?” A few months later, she went further, trademarking the year of her birth, “1989”. We now know it didn’t end there. A new book reveals that, a year later, Swift claimed ownership of the name Tay – and threatened to sue Microsoft for infringing it.

In the spring of 2016, Microsoft announced plans to bring a chatbot it had developed for the Chinese market to the US. The chatbot, XiaoIce, was designed to have conversations on social media with teenagers and young adults. Users developed a genuine affinity for it, and would spend a quarter of an hour a day unloading their hopes and fears to a friendly, yet non-judgmental ear.