Israel's 2018 Eurovision title has been thrown into doubt after one of the world's largest music companies accused its winning entry of copyright infringement.

Universal Music has reportedly fired off an intention to sue notice to the Israeli songwriters behind Netta's feminist anthem, Toy. The record label is behind some of the biggest names in music, including Elton John, Lorde and Ariana Grande.

Netta's quirky performance saw her snap up this year's Eurovision crown in May, despite a strong showing from Cyprus. The Israeli singer's performance included techno elements and other sounds, including vocal squeaks and clucks.

But according to reports, Universal believes Netta's song wasn't original. In fact, the company believes Toy is a rip-off of The White Stripes' 2003 track, Seven Nation Army.