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PHOTOS: Rihanna's Rollercoasting Good Time
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By:OK! Staff
Sep. 1 2009, Published 8:57 a.m. ET
Rihanna definitely doesn't seem to be scared of having her life turn upside down, as the "Umbrella" songstress grinned big on a rollercoaster during a visit to Six Flags Magic Mountain on Tuesday in Valencia, Calif.
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