"I can't believe I get to be one of the L'Oréal Paris girls. I love playing dress up, on stage or shooting videos, it's always been one of my favorite parts of being in a band," the platinum blonde told People.
The first collaborative ad will be -- appropriately enough -- for Infallible Le Rouge Lip Color, a long-lasting soft-shine lipstick that comes in a full smattering of every shade of the beauty rainbow. We're placing bets that the retro-fabulous Ravishing Red will be the songstress' shade of choice in her debut.
Funny enough, Stefani has always stayed mum on what her signature red shade is, revealing only that it's the result of layering several different red lipsticks together.
Yet, the Parisian brand and Stefani are no strange bedfellows; prestige hair care subset L'Oréal Professionnel recently sponsored the rocker-turned-designer's Spring 2011 LAMB show in New York, where models showed off clusters of braids highlighted in new ammonia-free Inoa hair color.
The 41-year-old Orange County native has already demonstrated that her touch guarantees gold in the beauty industry, with a successful franchise of Harajuku fragrances, inspired by a late '90s trip to Tokyo. All the bottles are artfully shaped little dolls, complete with the anime-meets-skater-style clothing the designer is known to rock herself.
We're just wondering, does this mean 4-year-old son Kingston is going to celebrate with a shiny red manicure?
And in other bold-lipsticked celeb spokespeople news, Taylor Swift is going glam in the name of CoverGirl.
Watch the video below to master long-wearing red lipstick like Stefani!