Cheryl has opened a Prince's Trust centre in Newcastle.
The 34-year-old star, dressed in a camel-coloured coat, blue polo neck and jeans, unveiled The Prince's Trust Cheryl's Trust Centre for young unemployed.
The mother-of-one said her relationship with the Prince's Trust was "the perfect marriage".<
She told the Press Association that inspiration for her involvement in the centre came about because of a bad year.
The star developed and was treated for malaria in 2010, the same year that her once fairytale marriage to footballer Ashley Cole ended.
She said: "I wouldn't call it a lightbulb moment but I had a moment of 'I need to help others that are feeling this'."
Having a tough time "reminds you of how I actually felt when I was younger growing up here - those same feelings, feeling vulnerable, insecure, my self-esteem was low.
"I just had a passionate feeling of wanting to help," she said.
The former Girls Aloud star and X Factor judge said she still relates to young people in the North East, despite her fame and success.
"You never forget," she said
"I have never forgotten how I felt as a teenager.
"It's tough growing up in the North East, especially now the unemployment rate is ridiculous.
"So, if we can help one, two, three, four people a year, let alone thousands or hundreds, get a job or get on their feet with their own business, then I have done more than my fair share."
The teenage Cheryl would have thought the centre was "awesome", she said.
"I would have probably either been here every other day ... or worked here."
She added: "Obviously it had to be here, it's where I'm from, it's where my family are from and it's where my friends still are. I was determined, it took a long time but we got here."
Cheryl added: "This is the biggest achievement ... of my entire career because it means so much.
"It's great to win awards and it's great attending events, but it's not the same personal feeling."