Caroline Ailin, Dua Lipa, Emily Warren, Ian Kirkpatrick

Toni Watson

Adam Levine, Michael Pollack, Jonathan Bellion, Jordan Johnson, Stefan Johnson, Vincent Ford, Jacob Kasher Hindlin

Eric Frederic, Melissa Jefferson

Amy Allen, Harry Styles, Thomas Hull, Tyler Johnson

Alessandro Aleotti, Daniele Lazzarin, M. Schiavo

Belcalis Almanzar, Camila Cabello, Edward Christopher Sheeran, Frederick John Philip Gibson, Jorden Thorpe, Steve Mac

Justin Bieber, Jason "Poo Bear" Boyd, Daniel Hackett, Sasha Sirota

Abel "The Weeknd" Tesfaye, Ahmad Balshe, Jason "DaHeala" Quenneville, Max Martin, Oscar Holter

Dario Faini, Diego Germini, Federico Bertollini, Giovanni De Cataldo

Niccolo' Moriconi

Allan Pineda, Annerley Gordon, Francesco Bontempi, Giorgio Spagner, Jose Alvaro Osorio Balvin, Keith Harris, Michale Gaffey, Peter Glenister, William Adams

Dario Brunori

Cesare Cremonini, Davide Petrella

Louis Bell, Austin Post, Adam Feeney, Billy Walsh, Kaan Gunesberk

Tommaso Paradiso

Mattia Vitale, Simone Giani, Luca de Gregorio, Joshua Grimmett, Connor Blake Manning, Rebecca Claire Hill

Fabio Rizzo, Davide Petrella

Chris Martin, Guy Berryman, Jonny Buckland, Moses Martin, Will Champion

Antonio Diodato

Lauro De Marinis, Edoardo Manozzi, Francesco Perrone, Dario Vizziello, Antonio Fortunato, Nathalie Hazel Intelligente, Giuseppe Donvito

Alice Coltrane, Chris Martin, Guy Berryman, Harcourt Whyte, John Metcalfe, Jonny Buckland, Will Champion

Fabio De Martino, Francesco Gramegna, Tiziano Ferro, Massimiliano Pelan, Fabio De Martino

Annalisa Scarrone, Mirko Manuele Martorana, Dario Faini, Federico Bertollini

Zucchero

Emmanuel Lipszyc, Jérôme Goldet, Mathieu Blanc-francard, Octave Lissner, Sébastien Lipszyc

Ed Sheeran, Johnny McDaid, Foy Vance, Jonny Coffer, Amy Wadge

Gianna Nannini, Silvano Albanese

Greg Kurstin, Ashley Frangipane

Alejandro Ramírez Suárez, José Álvaro Osorio Balvin, René David Cano Ríos

Fred Gibson, Laura Pergolizzi

Alessandro Mahmood, Alessandro Mahmoud, Dario Faini

Vasco Rossi

Giordano Cremona, Leonardo Grillotti, Eugenio Davide Maimone, Federico Mercuri, Benjamin Mascolo, Massimiliano Pelan, Fabio Pizzoli, Federico Rossi

Joe Jonas, Kevin Jonas, Nick Jonas, David Stewart, Jessica Agombar, Ryan Tedder

Selena Gomez, Madison Love, Brett McLaughlin, Nolan Lambroza, Simon Rosen

Alice Merton, Nicolas Rebscher

Selena Gomez, Julia Michaels, Justin Tranter, Mattias Larsson, Robin Fredriksson

Antonio Aiello

Ambezza, Ozan Yildirim, D. Hill, Nayvadius Wilburn, Aubrey Graham

A.R Rahman, Adam Clayton, David Evans, Larry Mullen, Paul Hewson

Alessandro Raina, Davide Simonetta, Mamhoud, Marco Mengoni

Thomas Andrew Searle Barnes, Benjamin Alexander Kohn, Peter Kelleher, Philip John Plested, Lewis Capaldi

Derrick May, Paul John Timothy, Janee Bennett, Ella Henderson, Jacqui Williams, Thomas Michael Jules, Nick Gale, Anne Marie Nicholson, Sigala, Michael Bruce James, Joachim Jarl

Ali Tamposi, Andrw Watt, Benny Blanco, Camila Cabello, Charlotte Aitchison, Jack Patterson, Magnus Hoiberg, Shawn Mendes

Dotan Harpenau, Neil Ormandy, Tim Randolph

Guglielmo Bruno

Alexander Gumuchian, Ari Starace

Alessandro Mamhoud, Alessandro Raina, Davide Simonetta, Paolo Alberto Monachetti

Alberto Carlo Arnaud, Giordano Cremona, Leonardo Grillotti, Eugenio Davide Maimone, Federico Mercuri, Giacomo Roggia, Vito Paparella, Fabio Pizzoli