Christian Rigano, Lorenzo Cherubini, Riccardo Onori, Saturnino Celani

Jeffrey Bhasker, Devon Christopher Gallaspy, Peter Gene Hernandez, Philip Martin Lawrence II, Bruno Mars, Mark Ronson, Lonnie Lee Simpson, Rudy Taylor, Nicholaus Joseph Williams, Charles Wilson, Robert Lynn Wilson, Ronnie James Wilson

Noel Zancanella, Ryan Tedder

Roberto Casalino, Dario Faini, Federico Leonardo Lucia

Andrew Hozier-Byrne

Luciano Ligabue

Emanuele Dabbono, Tiziano Ferro

Michele Iorfida, Fortunato Zampaglione

Amy Wadge, Ed Sheeran

James Bay, Tom Hull

Adam Clayton, Larry Mullen, Jr.

Ariel Rechtshaid, Madonna Louise Ciccone, Maureen McDonald, Toby Gad, Wesley Pentz

Cesare Cremonini, Davide Petrella

Tullio Ferro, Vasco Rossi

Chris Martin, Guy Berryman, Jon Buckland, Will Champion

Giorgio Tuinfort, Lindy Robbins, Samuel Denison Martin, Jason Gregory Evigan, David Guetta

Giovanni Pellino, Alessandro Aleotti

C. Yarbrough, E. Frederic, G. Saporta, J. Ryan, N. Cook

Andrew Swanson, Sia Furler, Thomas Pentz

Phoebe Killdeer, Cedric Le Roux, Craig John Walker

Detto Mariano, Don Backy

Ali Payami, Ilya Salmanzadeh, Max Martin, Savan Kotecha, Tove Lo

Giulia Capone, Niccolò Verrienti, Roberto Casalino

Cleo Tighe, Grace Chatto, Jack Patterson, Janee, Jess Glynne, Richard Boardman, Robert Harvey, Sarah Blanchard

David Guetta, Frederic Riesterer, Giorgio Tuinfort, Justin Davey, Pierre-luc Rioux, Tim Bergling, Vinay Vyas

Gregory Stephen Erwin, Alexander Leonard Jackson, Chonrak Lerdamornpong, Aaron Dale Moore Sharp

Adam Levine, Benny Blanco, Shellback

Amy Sheppard, George Sheppard, Jay Bovino

Kanye West, Paul McCartney, Dave Longstreth, Noah Goldstein, Mike Dean, Robyn Rihanna Fenty, Kirby Lauryen, Ty Dolla $ign, Dallas Austin, Elon Rutberg

Claude Kelly, Olly Murs, Steve Robson

James Napier, Sam Smith

Kevin Kadish, Meghan Trainor

Noel Gallagher

Salem Lars Al Fakir, Tim Bergling, Vincent Fred Pontare, Robert Peter Williams

Carmen Consoli

Abel Tesfaye, Ahmad Balshe, Ali Payami, Max Martin, Peter Svensson, Savan Kotecha

Luciano Ligabue

Max Martin, Shellback, Taylor Swift

Fritz Kalkbrenner, John Muder

David Etherington, Giorgio Moroder, Karen Poole, Patrick Jordan-Patrikios

Benjamin Cotto, Nili Hadida

Miguel Bosé, Massimo Grilli, Lanfranco Ferrario

Jesse Shatkin, Sia Furler

Ben McKee, Daniel Platzman, Dan Reynolds, Wayne Sermon

Tiziano Ferro

Landro, Rotellini, Sfratato, Zucchelli

Lenny Kravitz, Craig David Ross

Axel Hedfors, Salem Al Fakir, Sebastian Ingrosso, Vincent Pontare

Rebecca Hill, Uzoechi Emenike

Brooke Fraser, Joel Pott, Scott Ligertwood