Nicole Scherzinger thinks she is a "lean, mean killing machine".

The 'Don't Hold Your Breath' hitmaker - who is known for her trim and toned physique - admitted her weight tends to fluctuate between her having a "superhero" attitude and being a little more "relaxed" about her figure.

She explained: "My physique definitely takes work. But I fluctuate. Sometimes I'm in superhero mode and I'm all buff and lean, mean killing machine - but sometimes I let myself relax a little. At the moment I'm a little bit more relaxed.

"I love rice and pasta and chicken, fish and veggies. I'll always eat carbs - I don't believe in taking those away. Everything in moderation. I don't eat a lot of fried foods, naturally."

Nicole - who is dating Formula One champion Lewis Hamilton - revealed although her weight often goes up and down, she has learned over the years to come to terms with her natural body shape.

She told Glamour magazine: "I've grown as a woman to just accept myself. You're not going to feel great all the time - so you've just not got to be hard on yourself.

"Right now I've probably gained a few pounds, but it's OK because at the right time I'll lose a couple of pounds. When I put my mind to it, I hit the gym."