In case you haven't seen BBC Music's "God Only Knows" video yet, here it is. It really is quite an impressive production.
View this video on YouTube
So who are all of the artists in Alexandra Palace?
Here's everyone in the video in order of appearance.






























And finally...

The first person shown from the "God Only Knows" video is Ethan Johns, the track's producer. An earlier version of this article incorrectly identified him.