Christina Aguilera's and Joan Rivers’ outfits made our eyes hurt this week ... literally!

Xtina’s curve-hugging dress has a hypnotizing effect, while Joan should turn in her “Fashion Police” badge wearing this horizontal-striped horror.

Rosci Diaz is a pretty girl, but her mixed print was ugly. Plus, a few stars looked like they were ready for Halloween, and they weren't in costumes! See more worst dressed stars, below:


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