출연진
Peter Simonischek
Narrator
켈리 클락슨
Self
Joss Stone
Self
Anggun
Self
Josh Groban
Self
Lina Makhoul
Self
Gavin Rossdale
Self
Clifton Murray
Self
Fraser Walters
Self
Victor Micallef
Self
David Foster
Self
Anna Netrebko
Self
Rolando Villazón
Self
DJ Ötzi
Self
Alfred Jaklitsch
Self
Paul Falk
Self
Max Falk
Self
Dieter Falk
Self
존 데브니
Self
Siedah Garrett
Self
Wiener Sängerknaben
Self