Katy Perry leaves The One Show fans speechless as she turns up ...

Katy Perry’s bold outfit choice left The One Show viewers speechless as the singer went all out with her racy fit.

The American superstar, 39, appeared on Thursday’s episode of the BBC hit show alongside Alex Jones and Roman Kemp as she discussed her upcoming album and she also opened up on her family life with her daughter and fiancé Orlando Bloom.

Roman asked: “How do you find the time to fit in those precious family moments.” The pop icon revealed: “Oh I made the time because it’s the most important to me. Lifetime is one of the songs that I wrote about my daughter. I tell her that I love her before I go to bed but now I’ve started asking her ‘will you find me in every lifetime’ and she says ‘yes’”.

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She added: “The sweetest thing is that we’ve been all over Europe this summer and beaches so I bought a big stack of chocolate coins and when we are making sand castles I will hide them as she’s digging, so she loves finding chocolate gold coins.”

Elsewhere in the show, she gave viewers a rare insight into her relationship as she revealed that she is considering moving to London with fiancé Orlando Bloom.

Alex said: “It’s so nice to have you back, in one of your favourite places, London.” The singer revealed: “It is one of my favourite places beyond Santa Barbara, where I live. Orlando and I spent so much time in London and lately we have been thinking about maybe splitting our time. We love it so much.”

She continued: “We feel like you guys. We spent all day in Hyde Park yesterday and we went to the Princess Diana playground and it’s just great for kids, it’s amazing.”

Viewers watching at home were left distracted by Katy's outfit and they couldn’t help but share their reaction online. The singer opted for a grey t-shirt with a black lace mesh skirt.

One fan tweeted: “#TheOneShow wow Katy Perry's outfit is barking mad.” Another said: “To #TheOneShow audience: Katy Perry’s eyes are up here.”

Someone else commented: “#TheOneShow Katy Perry what a queen!” And a different social media user wrote: “Kemp lad looking at Katy Perry #TheOneShow.”