5. The heiress seemed shy, covering her exposed area with her arms.
2. Las Vegas was another stop on her Last Girl On Earth Tour.
Rihanna Performs at Mandalay Bay in Las Vegas
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 Rihanna performed at Mandalay Bay in Las Vegas on Saturday night. Photo: WENN
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Rihanna Performs at Mandalay Bay in Las Vegas
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 Las Vegas was another stop on her Last Girl On Earth Tour. Photo: WENN
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Rihanna Performs at Mandalay Bay in Las Vegas
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 Rihanna performed at Mandalay Bay in Las Vegas on Saturday night. Photo: WENN
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Rihanna Performs at Mandalay Bay in Las Vegas
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 The singer straddled a pink cannon and wore a hat that resembled Mickey Mouse ears. Photo: WENN
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Rihanna Performs at Mandalay Bay in Las Vegas
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 Rihanna performed at Mandalay Bay in Las Vegas on Saturday night. Photo: WENN
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