Donning signature bright-crimson lips, the songstress turned designer turned model is a hit in the latest L'Oréal Paris ad promoting its Infallible La Rouge Lip Color.
The mass-market beauty brand just announced Stefani last week and wasted no time getting the "Hollaback Girl" on air to advertise its long-lasting, soft-shine lip color infused with Vitamin E.
The 41-year-old lipstick-loving songstress now joins the ranks of other Hollywood pop stars like Beyoncé and Jennifer Lopez in representing L'Oréal Paris -- and looking just as fabulous on-screen as they do onstage.
So far, Gwen and her bright-red pout are a definite favorite though!