Yep, one of the biggest pop stars in the world actually got her start on Eurovision! Way back in 1988, Dion appeared on the contest to represent Switzerland (despite actually being of French-Canadian origin). She won with her song "Ne Partez Pas Sans Moi," and, as we all know, went on to have an enormous career that is still ongoing, with hits like "My Heart Will Go On" and "It's All Coming Back to Me Now".