This is Full Moon Lullaby as performed by Ann Darrow (Christiani Pitts) to King Kong (voiced by John Hoche). This scene takes place at the top of Skull Island as Ann helps nurse Kong's wounds after he saved her from a harrowing attack.

Please note this is from the previews before the show officially opened and this number was changed for the final show. Filmed in October 2018.

A link to the full show in previews is here:    • Video