London: Pop star Cheryl Cole has vowed never to undergo invasive surgery to preserve her youthful looks. The former Girls Aloud star said wrinkles should be worn as a badge of honour, reported a website.

"We earn our wrinkles. It's character, it's the map of your life... I have great role models in my mum and family. The whole botoxing and surgery thing is like, what? They don't get it, they don't like it. (My mum) would go crazy (if I got it)," she said.

The brunette beauty, who will turn 30 later this month, is looking forward to her birthday as she's convinced women look their best in their 30s.

"I always used to look up to women in their 30s and think, 'This is when women are at their most beautiful, sexy and their most confident.' That's what I was aspiring to be and now I'm here too, I feel like, 'Cool, I can relax now,'" she added.