I saw this at work today and it completely melted my stress away. Now that is how you turn a stadium into the Milky Way. Imagine that visual setup with Moment of Surrender.
Also, regarding the song request spot, they are literally taking requests from people posting videos through instagram. Not totally sure about the details or the degree to which it's scripted (how early do they know, etc.) but still it's very impressive. Literally a video of a person asking them to play a song, and then they do it.