American Idol

Ryan Seacrest

Self - Host

Lionel Richie

Self - Judge

Katy Perry

Self - Judge

Luke Bryan

Self - Judge

Bobby Bones

Self - Mentor

Carrie Underwood

Self, Self - Judge

Pat Benatar

Self

Neil Giraldo

Self

Jason Mraz

Self

Shaggy

Self

Elle King

Self

Julia Michaels

Self

Cynthia Erivo

Self

Rebel Wilson

Self

Lauren Daigle

Self

Gabby Barrett

Self

Daddy Yankee

Self

Laine Hardy

Self

Alejandro Aranda

Self

Hannah Brown

Self

Adam Lambert

Self

Montell Jordan

Self

Brian Bell

Self

Rivers Cuomo

Self

Lea Michele

Self - Special Guest, Self

Patrick Wilson

Self

Scott Shriner

Self

Andra Day

Self

Kane Brown

Self

Ben Harper

Self

Louis Knight

Self - Contestant

Nick Merico

Self

Jimmie Allen

Self

Ryan Tedder

Self

Katharine McPhee

Self

Brian McKnight

Self

Joss Stone

Self

Ben Rector

Self

Jewel

Self

Tori Kelly

Self

Brandon Boyd

Self

Jason Aldean

Self

Josh Groban

Self

PJ Morton

Self

Bebe Rexha

Self - Special Guest

Ada Vox

Self - Contestant

Colbie Caillat

Self - Special Guest

Banners

Self - Special Guest

Cam

Self - Special Guest

Allen Stone

Self - Special Guest

Rachel Platten

Self - Special Guest

Lukas Graham Forchhammer

Self

Ronnie Paulley Jr

Old School - Pep Talk