The 35-year-old singer was subject to a plot straight out of the spy books after the Russians left the code carefully hidden among the comments on her Instagram pictures.
GETTY The two have been embroiled in a bitter spat ever since Taylor, 27, accused Katy of stealing some of her back-up dancers in the middle of her tour in 2013, and now the 32-year-old singer is fighting back.
“I wish I could turn the other cheek every single time but I’m also not a pushover, you know?
The 55-year-old, who was responsible for appointing Matt Smith and current Doctor Peter Capaldi, who is stepping down at the end of the current series, said: “I didn’t not cast a woman, I cast a man.
I didn’t think it was a terrible idea, I just thought, ‘I want to cast those people’ – that was it.” See today's front and back pages, download the newspaper, order back issues and use the historic Daily Express newspaper archive.