Gaynor Sullivan, known professionally as Bonnie Tyler, is a Welsh singer who is known for her distinctive husky voice. Tyler came to prominence with the release of her 1977 album The World Starts Tonight and its singles "Lost in France" and "More Than a Lover". Her 1977 single "It's a Heartache" reached number four on the UK Singles Chart, and number three on the US Billboard Hot 100.

Dieter Bohlen is a German songwriter, producer, singer and television personality. He first achieved fame as a member of the pop duo Modern Talking in the 1980s, and has since produced numerous German and international artists. He is also a judge on casting shows Deutschland sucht den Superstar and Das Supertalent.