Popsugar Celebrity The Royals Prince Harry Sings a Song From Hamilton Prince Harry Actually Sang a Bit of Hamilton On Stage, and the Cast's Reaction Was Perfect 31 August 2018 by Gemma Cartwright First Published: 30 August 2018 "You say..."Thank you to the cast and crew of @HamiltonWestEnd for a fantastic performance, raising awareness and funds for @Sentebale's work with children and young people affected by HIV #HamiltonLDN pic.twitter.com/M5hmjTfhEz— Kensington Palace (@KensingtonRoyal) August 29, 2018 Prince Harry and Meghan Markle's glamorous night out to see Hamilton in London on Wednesday culminated with Harry taking to the stage to make a very memorable speech. The special performance was in honor of his charity, Sentebale, and as Harry stepped up to thank the crowd for their donations and support, he got the whole crowd cheering — and the cast in stitches — as he broke into the opening line of "You'll Be Back", a song performed in the show by the actor playing his ancestor, King George III. Lin-Manuel Miranda clearly had a little something to do with Harry's public singing debut. After he quickly stopped singing and joined the laughter, Harry pointed at Lin and explained, "He did try, but I said no." Hamilton's creator then took to Twitter and joked that "King George III's great-great-great-great-great-great grandson The Duke Of Sussex sang a few bars tonight." Michael Jibson, who currently has the role of King George, also shared a photo of himself with Harry, where he confirmed that the prince had asked the question on everyone's lips: is the crown heavy? See the moment ahead, and relive Harry's musical moment for yourself. Image Source: Getty / DAN CHARITY 1 / 9 Image Source: Getty / DAN CHARITY 2 / 9 "You say..."Thank you to the cast and crew of @HamiltonWestEnd for a fantastic performance, raising awareness and funds for @Sentebale's work with children and young people affected by HIV #HamiltonLDN pic.twitter.com/M5hmjTfhEz— Kensington Palace (@KensingtonRoyal) August 29, 2018 3 / 9 Image Source: Getty / WPA Pool 4 / 9 Image Source: Getty / DAN CHARITY 5 / 9 “Yes it is heavy!” @HamiltonWestEnd @HamiltonMusical #KG3 pic.twitter.com/mL8Y9FRcG6— MICHAEL JIBSON (@mikejibson) August 29, 2018 6 / 9 Image Source: Getty / WPA Pool 7 / 9 Image Source: Getty / WPA Pool 8 / 9 King George III’s great-great-great-great-great-great grandson The Duke Of Sussex sang a few bars tonight #HamiltonLDN 👀 https://t.co/fnND9i2RlW— Lin-Manuel Miranda (@Lin_Manuel) August 29, 2018 9 / 9 The RoyalsLin-Manuel MirandaHamiltonThe British RoyalsPrince Harry