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    Fourth-Place Medal

    Olympic look-alikes: A pair of virtuosos

    One is a trend-setting pop singer whose last album went triple platinum. The other ushered in a new ice age by winning a gold medal Monday night. Katy Perry and Tessa Virtue bear more than a striking resemblance.

    The Twitterati on Monday night also seemed willing to suggest Emily Blunt and "the other Deschanel sister" as Virtue's celebrity double. Bill Brioux of the TV Feeds My Family blog put forth Alexis Bledel, the actress who played Rory on "Gilmore Girls."

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