Australia

• Joel Adams
• Cody Simpson

Belgium

• Loic Nottet

Brazil

• Chris Leão

Canada

• Olivier Dion
• Shawn Mendes

Germany

• Jonas Nay

England

• George Ezra
• Sam Fender
• James Kennedy
• Max Milner
• Sam Palladio
• Louis Tomlinson
• Alex Turner

France

• Côme
• Valentin Brunel
• Hugo Leclercq
• Matthieu Tota

Sweden

• Måns Zelmerlöw

United States

• Chris Colfer
• Brandon Flowers
• Jack Gilinsky
• John Gourley
• Josh Groban
• Blue Hamilton
• Jack Johnson
• Adam Levine
• Dylan Minnette
• Chord Overstreet
• Charlie Puth
• Justin Timberlake