Peter Simonischek as Narrator

Kelly Clarkson as Self

Joss Stone as Self

Anggun as Self

Josh Groban as Self

Lina Makhoul as Self

Gavin Rossdale as Self

Clifton Murray as Self

Fraser Walters as Self

Victor Micallef as Self

David Foster as Self

Anna Netrebko as Self

Rolando Villazón as Self

DJ Ötzi as Self

Alfred Jaklitsch as Self

Paul Falk as Self

Max Falk as Self

Dieter Falk as Self

John Debney as Self

Siedah Garrett as Self

Wiener Sängerknaben as Self

John Rhys-Davies as Douglas Haig

Sassy Holzinger as Self