Mesh Moschino, a mummified caftan and a fringe fail -- stars are rocking all the wrong trends this week!

There’s no telling what wacky wardrobe she’ll wear on any given day, and Rita Ora decided to wear head-to-toe fishnets at the Capital Summertime Ball in London, England on Saturday.

The British singer sported a long-sleeved mesh Moschino crop top and matching sheer bicycle shorts on the red carpet. She even added chunky gold belt and a heavy medallion necklace -- as if the see-through ensemble wasn't already tacky enough!

Steven Tyler never ceases to amaze us when it comes to his unusual style choices! The 66-year-old rocker stepped out on Monday for the Stella McCartney runway show in Milan and was photographed sporting an array of white flowing fabrics that resembled swaddling baby blankets.

But this isn’t the first time the Aerosmith frontman has donned the mummified look. He recently wore the same kaftan ensemble in Germany, complete with pink teddy bear. 

And, AnnaLynne McCord made quite a statement on the streets of New York City, wearing a long white maxi dress with fringe along the hem. It looks like the "90210" alum went through a paper shredder before she left the house.

But these celebs weren't alone -- see more of this week's worst dressed stars in the gallery above!

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