What is "fierce style"?
Siriano explained that being fierce is a state of being -- not necessarily something you can try to be.
"When you are fierce, you feel fabulous about yourself, you feel strong, independent and confident," Siriano said. "And when you apply that to style, it means taking chances. I always say that fear and fierce are polar opposites, because if you are afraid to take chances you will never be fierce. It's a state of being, a combination of flawless and fabulous."
Siriano also explained his own fashion lingo that he uses in his book, including the word "ferosh."
"This is all about a state of being when something is totally fabulous, but not necessarily fierce," he said. "You are doing something to enhance one's fabulousness, but it's not quite at a fierce point. It's a step below."
Another favorite term of Siriano's is " tick-tack-toe," which he explained happens when all of your tackiness has come together and created a perfect score.
He said, "You win, you have three x's in a row. But actually, you've lost because you are the epitome of tackiness."
Siriano also discussed some of his favorite fierce fashionistas, including Halle Berry, Heidi Klum, Victoria Beckham and Natalie Portman. All of these women, Siriano said, because they're daring with their style choices, yet are body-conscious.
But how could the average woman bring fierceness into her wardrobe?
Siriano explained being fierce is about a mindset, not just the clothes.
"Early Show" co-anchor Maggie Rodriguez remarked the clothes presented for the everyday woman had extra details, such as a zipper on a T-shirt, that added a unique quality to the outfits.
Siriano said, "It's all about those little details ... that's an easy way to kind of dress up anything."
All clothing seen on "The Early Show" is by Christian Siriano, and is available at Saks Fifth Avenue.
Shoes are Christian Siriano for Payless.