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The hilarious moment went down when Miley was performing and prancing around with that fake butt on that she loves to wear these days. Don't worry, she wasn't hurt.
Luckily, the whole thing was caught on video tape and posted online. She seemed to recover but not without a OMG-look on her face. We're sure she just laughed it off, but was super embarrassed deep down. Watch her spill below.
This isn't the first time Miley's done something cray on tour. Just a few weeks ago, she almost got arrested because she got spanked with the Mexican flag. Really.