A pant-less dog walker, a terrible turban and creepy couture -- the stars are rocking all the wrong trends this week!

Lady Gaga raised some eyebrows in Berlin, Germany on Wednesday, when she stepped out without pants to walk her dog. The "Art Pop" singer went sans-bottoms in an oversized pink T-shirt with hearts, fishnet stockings and black pumps.

The worst part? Mother Monster completed her odd ensemble with a short, curly wig that only a mother would love!

Christina Hendricks landed on our WTF list this week for wearing a yellow satin Stephen Jones turban on the red carpet at Tacori's event celebrating the launch of their Gentlemen's jewelry collection in Los Angeles on Tuesday. The "Mad Men" star paired her marigold headpiece with a white Wes Gordon button-up blouse and black Ralph Lauren trousers.

We love the rest of this outfit, but that topper's got to go!

And Nicole Richie missed the mark at AOL's Fall Premiere event in West Hollywood, California on Thursday, sporting a sheer lace floral maxi over a black bodysuit. While we are digging her turquoise 'do, the reality star looks more like a corpse bride than a style maven in this dark dramatic dress.

But, these ladies weren't alone -- click "Launch Gallery" above to see more of this week's worst dressed stars.

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