This was from a couple of days ago during Red Nose Day, which is a campaign dedicated to raising money for children and young people who are living in poverty. The video below is a little long at 12 minutes but its worth your time if you're a fan of Game of Thrones.
The majority of the cast came out to play for this one, basically everyone except for Cersei and Arya, which is weird because I feel like this would be right up Arya's alley. She must have had some prior engagement or something.
My ranking of the top 3 from the Game of Thrones Musical:
He narrowly edges out his brother Jamie for the third spot on the list with his brooding rock son, "Still Going Strong."
2. Jon Snow
Easily the best song and performance is from Jon Snow. He actually looks like a frontman and the fact that he's singing to his Wildling girlfriend is hilarious. She plays it off perfectly too. I'm not sure why he's not able to be a bigger star but I guess we'll just wait and see.
In perhaps the biggest upset, Ramsay comes out of nowhere and steals the show. I've been a big fan of Iwan Rheon since his time on the awesome British show Misfits, so I've been really let down by his character thus far on Game of Thrones. Yeah, he plays the creepy, sadistic bastard well, but he has very little dimension as a character.
Seeing him do a complete 180 for this was refreshing and pretty hilarious. Plus, he was actually in a band called The Convictions before going into acting and has released some solo EPs as well. He actually sounds pretty good so it's a shame he didn't get to do something a little more to showcase that in the Musical.