Cast

Justin Bieber

Justin Bieber

Nicole Scherzinger

Nicole Scherzinger

Jennifer Hudson

Jennifer Hudson

Jennifer Nettles

Jennifer Nettles

Josh Groban

Josh Groban

Tony Bennett

Tony Bennett

Mary J. Blige

Mary J. Blige

Toni Braxton

Toni Braxton

Michael Jackson

Michael Jackson (archive footage)

Janet Jackson

Janet Jackson

Crew

Paul Haggis

Director (Directing)