By StyleWatch
Updated January 22, 2010 05:56 PM

Jackson Lee/Splash News Online

Making her debut as Lancôme’s global ambassador at a dinner in Paris, Julia Roberts got frank about what it’s like to be the beauty brand’s newest spokesperson. “It’s kind of like every girl’s dream, really,” she tells WWD. “To be 42 and have three kids and be a working mom, it’s a great moment to be asked to do this and to be able to do it. I think it says a lot about Lancôme and what they stand for.” As for how she’s approaching her new role, the actress jokes, “I think I have to stand up straighter and wash my face more.” But Yousef Nabi, Lancôme International’s president, tells WWD that the actress took the assignment very seriously, explaining, “Julia really wants to be involved in the development of the products.” For her part, Roberts said, “I get all these things to play with and test and give my opinion about. And it’s quite exciting without having to invest all of myself in how I look because they did come to me as me, which is a pretty casual mom. But you know, it’s nice to up your game a little bit.” While Roberts is taking a down-to-earth attitude toward being the beauty industry’s newest supermodel, she’s already starring in her first campaign, for Définicils Precious Cells Mascara. Shot by photographer Mario Testino in a private Manhattan apartment, the ads will break in Europe this March before rolling out to the U.S. during the summer. We can’t wait to see them!–Katherine Kluznik Rentmeester