Foxes thinks new 'Doctor Who' actor Peter Capaldi is better looking than his predecessor Matt Smith.
Foxes will make a cameo in the upcoming series of the science fiction favourite, and she has admitted she finds the new Time Lord more attractive than his former self.
After refusing to confirm whether they filmed any scenes together, she told Digital Spy: "I love him though.
"He's such a charmer. I was asked who I fancy between Matt and him and I was like, 'Peter Capaldi!'"
The 'Let Go For Tonight' hitmaker couldn't reveal whether her character would be a human or an alien, but she did insist she thought she was "nice".
She said: "I can't say! I'm not playing a villain. I think I'm nice in the show."
Talking about the song she has written for the show, Foxes admitted fans will hear her out of her "comfort zone" when she performs the track during the episode.
She added: "I've done a song for 'Doctor Who', and it's a little bit different from what I'd usually do. "It was really nice to be out of my comfort zone.
"I'm singing it on the episode ... It's one of those things where I wouldn't say no [to releasing it after it airs] but I don't really know yet."
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