The winning nation must host the following year's contest, so Barzilai's victory means that Eurovision 2019 will be in Israel.
If Eurovision really is about unity, about celebrating what we have in common, these desperate attempts to politicise it only cheapen the whole thing.
Previously, she was seen mainly in clubs and private functions.
Australia's entry from Jessica Mauboy was in 12th place when the votes from the jury voting were tallied but did not score well in the tele-vote section and was dragged down to 20th place in the 26 spot competition.
She performed to a backdrop of Maneki-nekos, a Japanese figurine depicting a waving cat and is thought to bring the owner good luck. Both were top favorites to take the trophy home. The Palestinians claim east Jerusalem as the capital of their future state, a position with wide worldwide backing.
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The man was actually able to get off a shot that bounced harmlessly off the ground before he crumpled into a heap. Ms Sastre has since been honoured by the city's Governor, Marcio Franca, for her quick-thinking valour.
In a country with a perpetual sense of siege, Israel tends to go gaga over any worldwide success that reinforces its image of itself as a normal country. They also greeted the Dutch jury with "good evening, Hilversum" - the name of the small city where the Dutch Eurovision studio is located. Barzilai's eccentric feminist anthem "Toy" - which combines clucking chicken noises over looped vocals and English lyrics - seemed to win out over any qualms about Zionism. "Thank you for celebrating diversity!"
The biggest surprise during last night's performance came while the UK's SuRie was belting out her song, "Storm".
In Israel, too, some saw a political message in the victory by Barzilai.
At the tail end of a day of deadly clashes in Gaza and the tense relocation of the US Embassy to Jerusalem, Rabin Square filled with flag-draped fans and girls sporting Barzilai's trademark Mickey Mouse buns.
Americans who find themselves in Israel in May discovered with a sense of surprise that there exists a major worldwide competition that is important to much of the world...and has nothing to do with soccer....but Americans barely know it. "So you need to just go up and fly". "It's a rarity show and that's a shame in a song festival".
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