Oh, Ke$ha. She just can't seem to get it right.

We hoped after seeing her go without make-up last week, she'd tone down her look. But she did the exact opposite. What is up with her floral getup (that cap belongs on a synchronized swimmer). And those tights ... yikes!

Ke$ha's not the only rocker who landed on our worst dressed list. We're not quite sure what's going on with Steven Tyler and Joe Perry's scarved lady look, and Debbie Harry continues to puzzle us. Check out more of this week's worst dressed stars by clicking the "Launch Gallery" above!

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