If you’re one of those people who skimps on skincare and spends a lot of time in the sun (or even worse, a tanning bed) this message is for you: You should really take care of your skin while you’re young. Even Carrie Underwood — one of country music’s most beautiful celebrities — admits that if she could go back in time, to her teenage years, she would treat her skin right.

“If I could go back and talk to my 15-year-old self I’d be like, ‘Seriously, listen to your mom,’” Underwood told  People magazine. “Drink more water, put more sunscreen on, moisturize. There are a lot of people like me who wish they did more.”

And while Underwood sounds a bit like she’s reciting lyrics from Baz Luhrmann’s ‘Sunscreen,’ these days, the fresh-faced country star and new spokesperson for Olay has her skin care routine down to a science. She emphasizes that taking care of your skin doesn’t have to be a labor-intensive process, though.

“I don’t have time for complicated,” she says. “I don’t have space in my luggage for 20 things that do different things for my skin — I don’t know anyone who does.”

So Underwood carries a skin care ‘kit’ with her whenever she’s out on tour. She’ll of course have that kit in tow this summer as she teams up with Olay to promote the Beauty by Example initiative — a charitable campaign where women can visit Olay’s Facebook page and sign a declaration saying that their mom is beautiful, both inside and outside. For every signature, Olay will donate one ounce of their products to Look Good, Feel Good, an organization that helps boost the self esteem of women who are being treated for cancer.

As expected, Underwood is proud and excited to get behind this initiative.

“My mom is a great example to me and my sisters, she’s just the best,” she says. “If I ever had one of those days when it’s like, ‘I don’t feel so great about myself,’ she’d always tell me, ‘You’re beautiful, you’re funny, you sing well.’ She was always a positive person in my life, which is important,” she adds. “People need more positive influences.”