Voluminous velvet, a bedroom bustier and a loincloth mini -- stars are rocking all the wrong trends this week!

Rose McGowan raised some eyebrows at the Los Angeles premiere of "About Alex" on Wednesday, donning a frumpy black velvet top with a black pencil skirt. The "Jawbreaker" star topped off her messy ensemble with a unflattering cropped 'do with bangs. This oversized tee and mature haircut make the 40-year-old actress look much older than she is. Her overly pump lips don't help either!

Kim Kardashian landed on our worst dressed list this week for rocking a glorified silk robe with a bustier bra during an appearance on "Jimmy Kimmel Live." It could easily be said that these two pieces belong in the bedroom and not on the street, and most definitely not on the late night show.

And, Nicole Richie made quite an impression at the "Luxury Redefined" event in Los Angeles for sporting a long-sleeved Anthony Vaccarello shirt dress with a pointed hemline. This isn't the first time the "Candidly Nicole" star has rocked this loincloth look -- but it should be her last.

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

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