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.
The record producer who worked on the track. Has worked with everyone from Paul McCartney to Kings of Leon.
A talented teenage pianist who earlier this year won the BBC Young Musician of the Year. He's currently studying at the Royal College of Music and the Purcell School.
A hitmaker known these days mostly for "Happy", "Blurred Lines", and, of course, Daft Punk's "Get Lucky", a song that you couldn't escape from in 2013 no matter how hard you tried.
That singer you couldn't avoid during the London 2012 Olympics, famous for songs such as "Read All About It" and "Next to Me".
How do you not know who Elton John is? C'mon. Even butterflies know who he is.
The singer of the Grammy-winning "Royals". She also has wings.
The lead singer of Coldplay. People like to moan about his band on Twitter.
A founding member of the Beach Boys, and the man who wrote "God Only Knows".
The lead singer of Florence + the Machine, whose hits include "Dog Days Are Over" and "Shake It Out".
A famous Australian singer. An alumna of Neighbours, she was also a 2013 judge for The Voice UK.
Like Elton John (and Kylie, for that matter), he doesn't really need an introduction, but have "Superstition", "For Once in My Life", and "Signed, Sealed, Delivered (I'm Yours)" anyway. Alright?!
An international folk star who has been nominated for Mercury Music Prize twice. You can follow her on her Twitter @elizacarthy.
A famous Scottish violinist and former BBC Young Musician of the Year. Follow her on Twitter @NickyBenedetti.
A pianist and presenter of Later... With Jools Holland and the New Year's Eve show Hootenanny.
The guitarist for Queen, well known for soloing on the top of Buckingham Palace. Also an astrophysicist and animal lover.
Best known for "Lightning Bolt", "Broken", and for wearing trainers in this video.
BBC 6 Music DJ, BBC Glastonbury presenter, and columnist for The Observer.
BBC Radio 3 and BBC Arts presenter. Here she's playing the violin like a pro.
A notable youth orchestra with students from all over the north of England.
A choirmaster known for BBC docs in which he teaches people to sing, such as The Choir: Military Wives.
A trumpet player who has performed at the Royal Albert Hall and the iTunes Festival.
Look how Harry Styles stares into Zayn Malik's eyes. Aren't they just dreamy?
BBC Radio 1 DJ. Known for shouting "ARE YOU ON BOARD?" a lot.
A bhangra music artist known for his songs "Groundshaker 2" and "Jakara". You can follow him on Twitter @THEJAZDHAMI.
A singer-songwriter known for "Picking Up the Pieces" and her cover of "Never Tear Us Apart". She also starred in the 2007 reboot of St Trinian's.
The lead singer of The Pretenders, who made "Brass in Pocket" and "Back on the Chain Gang".
A pop jazz musician who achieved mainstream success with his albums Pointless Nostalgic and Twentysomething. Also a presenter on BBC Radio 2.
A famous Senegalese singer and guitarist who has performed all over the world.
An Australian lyric soprano. You can follow her on Twitter @Danielledeniese.
The drummer of Nirvana and the founder and lead singer of Foo Fighters. Lovely hair.
And finally...
A singer-songwriter who reached mainstream success with "Latch" and "Stay With Me". The window though, the window on the left has not performed any songs.
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.
