Jessica Simpson's past fashion mistakes have helped her become a better designer.

The singer and actress cringes when she looks back on some of her previous fashion faux pas but says her mistakes have helped her to create the best clothing possible for her Jessica Simpson line of clothes and shoes.

She explained to People magazine: "There are a lot of things I've worn and look back on and think, 'Oh, my'. When it comes to beauty, I think a big misconception is the tanner you are, the more beautiful you are. It's not always true. I look back on a lot of pictures where I'm really tan, and I'm like, 'Whoa!'

"I'm in all those meetings. I know the zipper pulls, I know what you're going to be purchasing next spring. I know what's going to be trending. It's really fun to take all those meetings and try and play great guessing games of what the public's going to buy."

Jessica also revealed she hates spending too much money on cosmetic products which is why she has teamed up with skincare expert Nerida Joy to introduce BeautyMint, an affordable line sold on the internet.

The pregnant popstar said: "We go to department stores and we have no idea what these people are telling us. We just know to get the 'it' product because it's working on this A-list celebrity. It's kind of like you're spending too much money on something you don't really know."