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Real-life Barbie

Russian model Valeria Lukyanova grabbed Internet fame for looking like a Barbie doll. Her photos look plastic, and there have been accusations that she doctors them. (Valeria Lukyanova/Facebook)

2012 Year in Review: Most viral photos

From the Harper wedding photobomb to the most retweeted photo ever, this slideshow takes a look at the most viral photos from 2012.