Céline Dion made a rare appearance during the first semi-final of the Eurovision Song Contest with a brief, pre-recorded message. The star won the contest for Switzerland in 1988, and it had been rumoured she would take the stage as the ceremony returns to the country this year.

Sweden and Estonia battle to get into the grand final - Rehearsal footage was leaked online ahead of tonight’s semi-final, prompting Eurovision organisers to seek legal advice