Elton John

Character: Self - Host

Alicia Keys

Character: Self

Brian Littrell

Character: Self - Backstreet Boys

AJ McLean

Character: Self - Backstreet Boys

Nick Carter

Character: Self - Backstreet Boys

Kevin Richardson

Character: Self - Backstreet Boys

Howie Dorough

Character: Self - Backstreet Boys

Ken Jeong

Character: Self

Dave Grohl

Character: Self - Performer

FINNEAS

Character: Self

Ryan Seacrest

Character: Self

Shawn Mendes

Character: Self

Ben Falcone

Character: Self

Billie Joe Armstrong

Character: Self

Lizzo

Character: Self

Tim McGraw

Character: Self

Demi Lovato

Character: Self

Ellen DeGeneres

Character: Self

H.E.R.

Character: Self

Mariah Carey

Character: Self

Billie Eilish

Character: Self - Performer

Camila Cabello

Character: Self

Melissa McCarthy

Character: Self

Lady Gaga

Character: Self

Sam Smith

Character: Self