Every week there's someone who's both a winner and a loser, and this time it's Charlize Theron, who committed the cardinal sin of letting a dress "wear" her. But on the other side of the style tracks, she wore a sheer dress beautifully.

And we normally ignore Lady Gaga for these lists because she defies best and worst categorizations...she's literally something else. But this week we just couldn't resist the cut-out number that screamed "prom gone wrong."

Emma Thompson had something of a wardrobe malfunction, and if you haven't met the nearly-naked Micaela Schaefer this week, you should.

Click through our other picks for this week's worst-dressed and then soothe your eyes with the best-dressed list.

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  • Chloe Sevigny

    If J Woww were invited to the White House Correspondents Dinner, this is what she would wear. <br> London, May 15 (Photo Credit: Getty Images)

  • Lady Gaga

    Ok, Gaga, we're giving you what you're asking for: attention. <br> Taipei, May 16 (Photo Credit: Getty Images)

  • Charlize Theron

    It looks like this dress was invited to the premiere and decided to wear Charlize. <br> Madrid, May 17 (Photo Credit: Getty Images)

  • Kristen Stewart

    This is how you DON'T do sheer (for a good example see Charlize Theron). This dress looks moldy. And don't you always get the sense that she'd rather be in jeans and Converse--and we wish she'd just embrace that and own it. <br> London, May 14 (Photo Credit: Getty Images)

  • Micaela Schaefer

    What can we possibly say about this video tape dress? And we don't need to--you're not even concentrating on this caption. <br> Berlin, May 14 (Photo Credit: Getty Images)

  • Brooklyn Decker

    We've never seen a trapezoid-shaped dress before! <br> Hollywood, May 14 (Photo Credit: Getty Images)

  • Jada Pinkett Smith

    Commit to one type of dress please! <br> Madrid, May 13 (Photo Credit: Getty Images)

  • Emma Thompson

    We love slouchy pants on the red carpet because they're so unexpected, but these could have used some hemming. The print of the top is interesting, but let's discuss that sheer wardrobe malfunction. Her hair looks good, though! <br> London, May 16 (Photo Credit: Getty Images)

  • Rachel Zoe

    It seems the more successful the designer/stylist gets, the more conservatively she dresses. Snooze. <br> Pacific Palisades, May 15 (Photo Credit: Getty Images)

  • Colbie Caillat

    She's wearing all the trends at once: peplum, sheer, asymmetrical hemlines, layering, ombre mini. Enough already! <br> Beverly Hills, May 15 (Photo Credit: Getty Images)

  • Nicole Scherzinger

    This would have made a cute swimsuit, but as is, it just looks cheap. Very Miss Universe 1986. <br> Berlin, May 14 (Photo Credit: Getty Images)

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