Suggestions by @kamsismith

Jeff Bridges

as George Osmond in Osmond Harmony: A Musical Journey

Meryl Streep

as Olive Davis in Osmond Harmony: A Musical Journey

Hugh Jackman

as Howard Williams in Osmond Harmony: A Musical Journey

Asa Butterfield

as James Osmond in Osmond Harmony: A Musical Journey

Tom Holland

as Melvin Osmond in Osmond Harmony: A Musical Journey

Taron Egerton

as Alan Osmond in Osmond Harmony: A Musical Journey

Ansel Elgort

as Jay Osmond in Osmond Harmony: A Musical Journey

Joseph Gordon-Levitt

as Merrill Osmond in Osmond Harmony: A Musical Journey

Elle Fanning

as Olive Osmond in Osmond Harmony: A Musical Journey

Dakota Fanning

as Olive Osmond in Osmond Harmony: A Musical Journey

Timothée Chalamet

as Donald Osmond in Osmond Harmony: A Musical Journey

Zac Efron

as Donald Osmond in Osmond Harmony: A Musical Journey

Taron Egerton

as Brian Littrell in Backstreets to Stardom: The Backstreet Boys Story

Chris Hemsworth

as Kevin Richardson in Backstreets to Stardom: The Backstreet Boys Story

Zac Efron

as Nickolas Carter in Backstreets to Stardom: The Backstreet Boys Story

Janelle Monáe

as Dawn Robinson in Harmony Unleashed: The En Vogue Story

Lupita Nyong'o

as Maxine Jones in Harmony Unleashed: The En Vogue Story

Gabrielle Union

as Cynthia Herron in Harmony Unleashed: The En Vogue Story

Kelly Rowland

as Terry Ellis in Harmony Unleashed: The En Vogue Story

Keiko Kitagawa

as Kaori Iida in Eternal Harmony: The Morning Musume Story