Jessica Biel is on the February cover of US Vogue wearing Ralph Lauren Spring 2010. For the cover story in the February issue of Vogue, photographer Mario Testino reveals her two decidedly distinct sides: the simple country girl and the Hollywood star-on-the-make. Here’s what the 27-year-old actress opened up about:

On why she won’t discuss her relationship with Justin Timberlake: “I don’t want to talk about it. I don’t feel the need to clear anything up. It’s the most precious thing that I have in my life, and I care about it so much that I don’t care about what anyone says or thinks. I have just not addressed it in any real way, and I’m not going to. It’s mine. And I really like that about it.”