Which of the following artists has never participated in the Eurovision Song Contest?

Explanation

Celine Dion participated and won for Switzerland in 1988 with the song 'Ne Partez Pas Sans Moi', ABBA participated and won for Sweden in 1974 with the song 'Waterloo' whilst Cliff Richard participated twice for the UK, in 1968 and in 1973, but without winning. Julio Iglesias for Spain (1970) and Olivia Newton John for the UK (1974) as well as many, many other famous artists have also participated.