What were we thinking? You've seen it once, you've seen it a million times. Every few years stores flood with decade inspired pieces that give us a sense of nostalgia, and make us wish we were born in that time. From the Gatsby-esque pieces embodying the 1920s, to the A-line dresses inspired by the '50s, we have a tendency to repeat trends of decades past. But is it possible to have 100 years if style and iconic looks actually go by without having one major fashion decade faux pas? You guessed it --the answer is no, and the worst fashion decade in history is inarguably 2000 to 2010. The trends we've seen here are pretty much as bad as they get, so before you decide this decade needs a revival, check out the worst looks of the decade and maybe you'll reconsider.

1. Juicy tracksuits.

Wearing monochromatic velour head to toe sounded like a great idea at the time.

2. Dresses as shirts.

I'm all for a long-line top, don't get me wrong, but wearing a sundress over a pair of wide leg jeans? Not necessary. Please, never let this look come back.

3. Letting the world see your thong.

No. Just no.

4. Skirts and shorts with Ugg boots.

I'll admit, I was an offender of this trend. I can't be entirely sure what would possess us to pair sheepskin boots and skirts but these were darker times, and I'm sure we all have the embarrassing photos to prove it.

5. Wearing scarves as tops.

Taking to the dictionary with this one. Scarf: "A length or square of fabric worn around the neck or head," why we thought it was OK to stray from this definition still blows my mind.

6. Wearing belts that serve no purpose.

Everyone loved a good chunky belt to throw over their favorite flowing top/skirt combo.

7. Pants with words printed across the back.

I'm all for a clever quote on a graphic tee, but having "Juicy," "Angel," or "Baby" written across the butt is really unnecessary.

So, we've definitely all been there and have probably (sadly) rocked one of these trends, but I think we need to all make a pact to never let any of this be acceptable again. What happened in the 2000s should stay in the 2000s.