Mentors

Fleetwood Mac, Jason Mraz, Colbie Caillat

Radiohead, P!nk, Switchfoot, Beck, Foofighters

Sam Hunt, Rodney Atkins, Chris Young

Neon Trees, The Killers, Imagine Dragons

Death Cab For Cutie, Neil Young, The Jonas Brothers, Backstreet Boys

Fleetwood Mac, Billy Idol, Frank Sinatra, Beach Boys, Herbie Hancock

Michael Jackson, Whitney Houston, Aretha Franklin

Bon Jovi, Foy Vance, Elle King, Michael Kiwanuka.

George Jones, John Oates, T Graham Brown, Leon Russell

Paul McCartney, Ray Charles, Tina Turner, Cher, Pet Shop Boys

Post Malone, JoJi, Murda Beatz, Lizzo, MGK, The Misfits

Taking Back Sunday, Lil Lotus, As it is

Rufus Wainwright, Los Lobos

Usher, Timbaland, Ne-Yo, Akon

Motörhead, Pennywise, NOFX, Sum41

Aerosmith, The Fray, Ace Frehley

Periphery, Animals As Leaders, Veil of Maya

Beck, Neil Young, Quincy Jones, LL Cool J

Toto, Robert John & The Wreck

Nicki Minaj, Drake, Rihanna, Eminem, Nas

Louise Lovqvist, KRIMETZ, Nacho Fano

Distortion Felix, The Breeders, Health, Los Lobos

Midnight Oil, Kate Bush, Eric Clapton

Riffs, Beards & Gear

Powerwolf, Eskimo Callboy, Aborted, Benighted

Glenn Morrison

Wiz Khalifa, Schoolboy Q, Donnie McClurkin, The Roots

Mary J Blige, Ricky Martin, J-Lo, Il Divo

Taylor Swift, Paul McCartney, Alice Cooper, Ke$ha

Prince, BoyzIIMen, Usher, Outkast, The Weeknd

Alice Cooper, David Lee Roth, Ozzy Osbourne

White Zombie, Deftones, Pantera, Breaking Benjamin, Strung Out, Limp Bizkit, Slipknot

Foo Fighters, Queen Of The Stoneage

Daniel Powter, Adele, Aerosmith, P!nk & Miley Cyrus

Justin Timberlake, Skylar Grey, Kelly Rowland, Kevin Rudolf, Cher, Jason Derulo, Jessie J and Calvin Harris