On screen
Cast
14 credited performers
Delta Goodrem
Self
Pat Monahan
Self
Calum Scott
Character not listed
Christina Perri
Character not listed
Lukas Nelson
Character not listed
Josh Groban
Character not listed
Howie Dorough
Character not listed
Colin Hay
Character not listed
Artwork unavailable
FISHER
Character not listed
Artwork unavailable
Camilla Franks
Character not listed
Curtis Stone
Character not listed
Olivia Newton-John
Self (archive footage)
Robbie Williams
Self (archive footage)
Kylie Minogue
Self (archive footage)