London, March 10 (IANS) Pop singer Gwen Stefani is 41, and fit as a fiddle. But she admits she works very hard to maintain her toned shape.

Stefani says it is "a daily struggle" to keep herself fit, and she follows a gruelling fitness regime to maintain it, reports dailymail.co.uk.

"I work out five days a week, I can't imagine not doing it," said Stefani.

The mother of two says she doesn't like to compromise on her food intake, but at times, she has no option.

"I'd like to have no rules and eat what I want, but I've learned over the years that I'm so disappointed when I can't wear the clothes I want to wear. And if I let myself down, appear on stage when I'm not looking my best, it's not fun for me. I just beat myself up about it," she added.

The singer-cum-fashion designer says she is conscious about her looks and always makes sure her make-up is in place before she steps out of her house.

"I wear make-up every single day; I like to wear make-up for Gavin and I don't feel energised till I've put it on, then I'm ready to go."