Why is С Рождеством popular right now?

Do you know why С Рождеством is trending on Twitter? Click here, and in your own words, write a short definition and help your fellow Twitterers.
Category: Unspecified | Most recent: January 7 at 09:51 UTC | First appearance: January 6 at 20:05 UTC | Source: Twitter | Permalink

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http://whatthetrend.com/trend/%D0%A1+%D0%A0%D0%BE%D0%B6%D0%B4%D0%B5%D1%81%D1%82%D0%B2%D0%BE%D0%BC
whatthetrend.com
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http://whatthetrend.com/trend/%D0%A1+%D0%A0%D0%BE%D0%B6%D0%B4%D0%B5%D1%81%D1%82%D0%B2%D0%BE%D0%BC
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