Rihanna Rocks a yellow frock to the Pre-Grammy in her incredibly toned sexy figure

Rihanna is famous for flaunting her incredibly toned figure in a nearly endless stream of skimpy outfits.

But Rihanna took it a step further on Saturday night as she wore a gown that threatened to expose more than she bargained for at the Pre-Grammy gala in Los Angeles.

 Rihanna showed off her incredible figure in a daring yellow frock to the Pre-Grammy 
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Holding it all together: The Diamonds singer appeared to hold her garment in place at the party, clearly intent to save herself from a wardrobe malfunction