Before you leave the house in your favorite pair of jeans, stop and take a long look in the mirror. Is your backside sagging like a day-old diaper? Are your jeans so acid-washed they belong in an '80s music video? Do the tapered legs make you look like a walking ice cream cone? Could your waistband double as a push-up bra?

According to Oprah's in-house experts, about nine out of 10 women are wearing the wrong jeans. So, yes, that probably means you. To combat this out-of-control epidemic, Oprah asks Stacy London, host of TLC's What Not to Wear, to debunk denim myths and warn you about common fashion blunders.