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She's giving Miley a run for her money!

Ke$ha took to her Instagram to show off her slimmed down hot bod yesterday, and if you didn't think she was sexy before, we bet you do now!

In the series of snapshots, the singer flaunts her enviable derriere in lingerie as she crawls around on the confetti-covered ground.

The chart topper must be using her assets to garner publicity for the second season of her show Kesha: My Crazy Beautiful Life, which premieres October 30th on MTV.

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