Gwen Stefani 'Obsessed' With How She's Aging, Calls Fiancé Blake Shelton The 'Greatest Guy'

Gwen Stefani's secret for looking youthful is her romance with her fiancé Blake Shelton.

Stefani, 51, got candid about aging in her interview with The Daily Telegraph's Stellar. The "Slow Clap" singer acknowledged that there is a lot of pressure to maintain one's looks, especially for celebrities, but she's learned to embrace the changes as years go by.

"It’s really hard for everyone to age and have to face life. Especially for females and people who have been in the spotlight it can be daunting, but you tackle it by just trying to be the most beautiful version of yourself inside and out," Stefani said. "People talking about my aging is a compliment, I guess. I’m kind of obsessed with how I’m aging, too."

Stefani attributed her agelessness to being in love and being happy with her partner.

"Blake is the greatest guy. I look back over the past few years and look at pictures of when I first started kissing Blake, and I look the best I’ve ever looked in my life in those photos," she added. "Love must look good on me. I feel like that does show through -- it really does!"

The "Voice" co-stars started dating in 2015. After five years together, Shelton and Stefani announced their engagement last October. According to previous reports, Stefani's three sons with her ex-husband Gavin Rossdale — Kingston, 14, Zuma, 12, and Apollo, 6 — were involved in the proposal.

"Blake is very close to Gwen's boys," an unnamed source told Entertainment Tonight. "They talked it through and Blake made sure they were part of the excitement! Blake had a custom-made engagement ring."

Stefani gave a closer look at her engagement ring in November when she waited for Shelton inside their car while he accepted his award at the 2020 People's Choice Awards. According to Ajay Anand, founder and CEO of the diamond search engine Rare Carat, the singer's ring may have cost $500,000.

A month before Shelton and Stefani's engagement announcement, the two moved into their family home in Los Angeles. The couple purchased a 13,000-square-foot mansion that sits on 1.6 acres of private land last year for $13.2 million.