Madonna’s performance at the Eurovision Song Contest has been thrown into doubt by organisers, who say she has yet to sign a contract for the show.
Speaking on Monday, Eurovision’s executive supervisor Jon Ola Sand said: “The European Broadcasting Union has never confirmed Madonna as an act.”
He continued: “If we do not have a signed contract she cannot perform on our stage.”
The contest takes place in Tel Aviv in Israel on 18 May.
Madonna’s appearance was announced by her US and UK publicists in April.
They said the star was due to play two songs during the interval – one from her new album Madame X and another from her back catalogue, rumoured to be 1989’s Like A Prayer.
Eurovision organisers downplayed the story at the time, saying “no final decisions” had been made – although this appeared to be a formality.
But Sand, who has produced the contest since 2010, said on Monday that negotiations were still ongoing.
“We are in a situation now that is a bit strange,” he said.