Discussing her time performing as Spears, the 26-year-old said: "I want to get away from being an impersonator. I think I've done that now with X Factor.
"But I am a massive fan of Britney. I thought about wearing a wig, but I didn't and I stood in the crowd and I got mobbed. I just wanted to get down the front and cheer with everyone down the front.
"The police had to come and rescue me at one point. I was mobbed by all her fans. I was like, 'Britney's over there, you don't want me'. It was weird."
My bad if it was AP.