The former X Factor judge – who is known for her love of designer clothes – claims she is not above leaving her house in nothing but her nightwear, as long as no fans get too close and begin taking pictures.

She said: “Sometimes I get up in the morning, have a shower and put fresh pyjamas on. I can go to the garage at the bottom of the road in my pyjamas. As long as someone doesn’t take my photo on their phone, I’m fine. I just nip in and nip out.”

Meanwhile, the 28-year-old pop beauty has hit back at former protégé Cher Lloyd – who she mentored on the UK version of the X Factor – saying she has a “lot to learn” after she attacked her claiming she used auto-tune on her tracks.

She told GQ magazine: “She’s new. She needs to learn a lot. I went through hell to get her on that programme.

“Everyone says stuff at the beginning of their career they will learn to regret. It’s disappointing because I fought for her. Maybe I didn’t teach her as well as I thought I had.”

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