Last year’s Eurovision Song Contest winner Salvador Sobral has described one of this year's favourites as "a horrible song".

The 28-year-old was Portugal's first-ever winner after after a 54-year wait for the title and Eurovision fan site Wiwibloggs has reported on his thoughts on this year's Israeli entry, Toy, which is sung by Netta Barzilai.

A reporter at Publico asked Salvador: "Did you hear the songs competing for this year's edition?" He replied: "No. I only know the songs from Portugal and Greece because YouTube forced me to watch them. That’s the thing with technology.

"Suddenly, YouTube thought I would like the Israeli song and then I clicked on it and a horrible song started. I thought: 'YouTube, thank you, but it's not what I want.'

"Luckily, this year, I do not have to hear anything. I do not think anything has changed. Last year, people would say: 'Now that you've won, this contest will change! I do not think so. Maybe in the future."

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Netta Barzilai commented on the reports, but has taken a more classy and diplomatic approach than last year's winner.

Taking to twitter, the singer told her 7,423 fans: "Sending only love to Salvador, and to artists of all genres."

The Eurovision Song Contest is on Saturday on RTÉ One.