Gwen Stefani‘s version of the fountain of youth is their romance with Blake Shelton.

The artist “Hollaback Girl” spoke to Australian magazine Stellar about how often fans talk about how she kept her youthful glamor at the age of 51.

“It’s really hard for everyone to age and face life. It can be daunting, especially for women and people who have been in the spotlight, but you can approach it by just trying to be the most beautiful version of yourself to be inside and out. ” she told the outlet. “People who talk about my aging are a compliment I think. I’m also a little obsessed with how I’m going to age.”

Her secret to staying the most beautiful version of herself, according to Gwen, is that she is happy in their relationship.

“Blake is the biggest guy,” she said of her country singer fiancé, who popped the question last October. “I look back over the past few years and look at pictures when I started kissing Blake and I look better in these photos than I’ve ever seen in my life.”