Peter Capaldi may have ruled out any "flirting" in Doctor Who series eight but no one appears to have told guest star Foxes, who seems rather taken with the 12th Doctor.
The pop singer, real name is Louisa Allen, has been talking about her time filming in the show, in which she will be performing a song.
"I know I'm biased but I like that he's a charming silver fox," she said. "Sod it, he was lovely."
Foxes also revealed that she would not have been interested in the role if it did not involve singing, telling the Daily Star that, "It's more singing than acting, that's why I'm doing it. Acting isn't something I thought I would get into."
The pop star, who has scored several top ten hits this year with the dance-pop tracks Let Go For Tonight and Holding On To Heaven, will be one of several celebrities to cameo in Capaldi's debut series, which also includes appearances from Frank Skinner and Keeley Hawes.
Explaining how the guest appearance came to be, she said earlier this year "It all came about from a chance meeting. I was playing a gig and got chatting to the show's production team. I was telling them how much I loved Doctor Who and next thing they invited me to be on it!"
Showrunner Steven Moffat has also said that he's "thrilled" about Foxes appearance on the series, but has kept details of the episode under wraps.
"We are completely thrilled that the amazingly talented Foxes is joining us on board," he said. "Let's just say, the Doctor is finally catching up on his phone calls."
Doctor Who returns with series eight opener Deep Breath on August 23.