The `X Factor` judge says she was aware of her body shape from quite a young age and admits it started take over her life.

She told Shape magazine: "I started jogging and counting calories when I was just 14. I`ve been on every diet you can imagine. By the time I was in the Pussycat Dolls, I was on the scale all the time. It became my enemy because I noticed that when I exercised really hard, I`d gain weight."

However, the 33-year-old beauty says she`s more relaxed with her diet and doesn`t deny herself anything.

She said: "Now that I`m in my 30s, I`ve stepped off the scale. I just go by how my clothes fit.

"I`m more accepting of my body and have learned to really embrace it. These days it`s all about finding balance. My new motto is: `Stay active, eat everything in moderation, and stop being so tough on myself.` "
sections: Celebrities