Written by Christina Aguilera, Claude Kelly, and Ester Dean Originally performed by Christina Aguilera

Written by Stephen Sondheim Originally performed by Into the Woods (musical)

Happy Days Are Here Again Written by Jack Yellen and Milt Ager Originally performed by Leo Reisman and His Orchestra

Get Happy Written by Harold Arlen and Ted Koehler Originally performed by Ruth Etting

Written by Gin Wigmore, Julian Hamilton, and Gary Clark Originally performed by Gin Wigmore

Say You, Say Me Written by Lionel Richie Originally performed by Lionel Richie

I Just Called to Say I Love You Written by Stevie Wonder Originally performed by Stevie Wonder

Say Something Written by Ian Axel, Chad King, and Mike Campbell Originally performed by A Great Big World

Say Goodbye Written by Troy Verges, Aimee Mayo, Christopher Lindsey, and Hillary Lindsey Originally performed by Katharine McPhee

Marry You Written by Peter Hernandez, Philip Lawrence, and Ari Levine Originally performed by Bruno Mars

Dark Side Written by Michael Busbee and Alexander Geringas Originally performed by Kelly Clarkson

Written by Tom Kitt and Brian Yorkey Originally performed by If/Then (musical)