Rihanna, Katy Perry Explain Bizarre Grammy Outfits

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There were more bizarre moments on the Grammys red carpet besides Lady Gaga entering in an egg.

Rihanna donned body-hugging Jean-Paul Gaultier gown.
"I pretty much snatched it off the runway," she told Ryan Seacrest before the show started (the singer appeared at the show even though she had been battling bronchitis and laryngitis).
Related photos: Wackiest outfits at the 2011 Grammys
Meanwhile, Katy Perry also turned heads when she walked the carpet in a custom-made Giorgio Armani evening dress. The frock featured a Swarovski crystal encrusted bustier and an iridescent silk organza ruffled skirt which features a dramatic open front and cascading train. Topping off the look: Subtly lit white feather angel wings.  
Asked about her dress, Perry told THR it was "heavenly."
Perry selected two other Armani looks for the night as well, a pink dress confection (with a corset top embellished with pink shimmering rock crystals and a full mini skirt highlighted by an explosion of hearts embellished with Swarovski crystals) and an iridescent silvery cocktail dress.