Photos supplied courtesy of Chris Christodoulou.
Musicians
Sir Elton John
Sir Paul McCartney
Stevie Wonder
Kylie Minogue
Annie Lennox
Dame Shirley Bassey
Sir Tom Jones
Ed Sheeran
Barbara Streisand
Will.i.am
Adele
Ellie Goulding
Gary Barlow
Sam Smith
Mel. C
Rod Stewart
Jess Glynne
George Ezra
Grace Jones
Robbie Williams
Cleo Lane
Paloma Faith
Idina Menzel
Barry Manilow
Brian May
Harry Styles
Jessie Ware
Bands
One Direction
Little Mix
Craig David
The Pet-shop boys
Cold play
Clean Bandit
Stereophonics
Madness
The Hoosiers
Neil Diamond
Roachford
Santan Dave
Goldie
All Saints
Ronan Keating
Jason Mraz
Katie Melua
Chrissie Hynde
Jack Savoretti
Oasis
Aloe Blacc
Rick Astley
Actors
Helena Bonham Carter
Sir David Attenborough
Dame Judy Dench
Hugh Jackman
Seth McFarlane
Mark Gatiss
Juliet Stevenson
Hugh Boneville
Sir Michael Parkinson
Margot Robbie
Danny Elfman
Goldie
Jenna Coleman