Anastasia Prikhodko's song Mama was only put on the shortlist two days before the heats, but won most votes from both TV viewers and judges.
The 21-year-old singer had previously sought to represent Ukraine, but was disqualified after a voting dispute.
Russian-Ukrainian relations are chilly, after a gas dispute which led to winter power cuts in many European countries.
Prikhodko's entry mixes the two languages, with the verses sung in Russian and a Ukrainian chorus.
Or alternatively, a brilliant plan to shame the Georgians for going with an overtly political entry.
Either way, hats off to the Russians.
Full story here.
-- Luke Allnutt