Watch Once Upon a Time s6e20 online streaming free.
Description by couchtuner for Once Upon a Time Season 6 Episode 20 : In flashback, Snow and Charming make a special wish that Emma will be protected. The result of their wish has the whole kingdom bursting into song which infuriates the Evil Queen. Meanwhile in Storybrooke, the Black Fairy announces her plans to unleash another curse on the town while Emma and Hook prepare for their wedding.
Watch It Here : Once Upon a Time Season 6 Episode 20 The Song in Your Heart