Jessica Simpson: "I'm a Jeans Girl"

Credit: Optic Photos,; Jamie McCarthy/Getty Images for Jessica Simpson Collection; Macpherson/Splash News Online

She's the head of an almost billion(!)-dollar fashion business and gets her inspiration from boutiques in London and Paris, but when it comes to her personal style Jessica Simpson is all about the basics.

"I'm a T-shirt, jeans, blazer girl," she tells Us exclusively in the new issue.

And it's the superstar's accessible look that has turned The Jessica Simpson brand into a fashion empire that has raked in a staggering $750 million in 35 countries!

PHOTOS: Jessica's biggest OMG moments

From bootleg to skinny, the 30-year-old Us Weekly Style Icon of the Year regularly steps out in jeans, including her favorite vintage low rise flares from her own collection.

One denim style you won't find Simpson rocking: high-waisted jeans. "They're a risk for me -- I'm short!" she tells Us. "They don't work unless I'm wearing major platforms and something flattering up top."

To see Simpson looking hot in a slew of different jeans click here!