Victoria Beckham is baring it all in her new Emporio Armani underwear ad, but she tells ET she "didn't used to work out at all."

Victoria said it wasn't until she started working with Armani that she began to exercise. "If I'm going to stand there in my knickers and bra, I want to look as good as I can," she tells ET.

What man does Victoria like to see in his underwear? Her husband, of course! "David Beckham in his underwear, you don't get any better than that," she says of her soccer playing hubby. "We're lucky to have each other."

Watch ET's interview with the Armani model as she talks about the rumors of her family moving out of America and reveals what her husband really thinks of her underwear ad.

Another sexy celebrity is slipping down to her "knickers." Click HERE to learn more!