The Song in Your Heart

"The Song in Your Heart" is the twentieth episode of Season Six of ABC's Once Upon a Time. It was written by David H. Goodman & Andrew Chambliss, and directed by Ron Underwood. It will be the one hundredth and thirty-first episode of the series overall, and will premiere on May 7, 2017.

This is the first, and so far only, musical episode of the series. The songs were written by Alan Zachary and Michael Weiner.

Starring

 * Ginnifer Goodwin as Snow White/Mary Margaret Blanchard
 * Jennifer Morrison as Emma Swan
 * Lana Parrilla as Evil Queen/Regina Mills
 * Josh Dallas as Prince Charming/David Nolan
 * Colin O'Donoghue as Hook
 * Jared S. Gilmore as Henry Mills
 * Rebecca Mader as Zelena
 * Robert Carlyle as Rumplestiltskin/Mr. Gold

Guest Starring

 * Keegan Connor Tracy as Blue Fairy/Mother Superior
 * Michael Coleman as Happy/Happy
 * Lee Arenberg as Grumpy/Leroy
 * Faustino di Bauda as Sleepy/Walter
 * David Avalon as Doc/Doc
 * Gabe Khouth as Sneezy/Mr. Clark
 * Mig Macario as Bashful/Bashful
 * Raphael Sbarge as Jiminy Cricket/Archie Hopper
 * Beverley Elliott as Granny/Granny
 * Tony Amendola as Geppetto/Marco
 * Mckenna Grace as Young Emma
 * Jaime Murray as Black Fairy

Songs
The episode will feature a total of seven songs: One song is titled "Powerful Magic".
 * 1) "TBA" by Jennifer Morrison (Emma Swan)
 * 2) "TBA" by Ginnifer Goodwin (Snow White), Josh Dallas (Prince Charming), and Lana Parrilla (Evil Queen)
 * 3) "TBA" by Rebecca Mader (Zelena)
 * 4) "TBA" by Lana Parrilla (Evil Queen)

Trivia

 * -|Production Notes=

Production Notes
Set Notes=
 * The title of this episode was revealed by Adam Horowitz via his Twitter account on February 21, 2017.
 * The episode was also referred to as "The Musical Episode", as it was revealed by choreographer Paul Becker via his Instagram account on February 9, 2017.
 * According to Jane Espenson, a musical special feature was already considered back in 2014, but it did not happen because it was too expensive.
 * This episode has been in the works since Summer 2016.
 * Songs were recorded in advance, and then played back on set as the actors choregraophed.
 * According to Adam Horowitz, it was hard to figure out how to meld the "voice" of the show with a musical.
 * On the last day of filming for this episode, Colin O'Donoghue injured himself and fractured his foot.

Costume Notes

 * Emma's wedding dress is strongly inspired by the one worn by Grace Kelly during her wedding with Rainier III of Monaco.
 * Jennifer Morrison explained that the dress "represents the elegance and simplicity of classic timeless strength mixed with the delicacy of feminity and vulnerability".