Monday Morning Smile: "Sing a Song" - Earth, Wind & Fire

So of course Earth, Wind & Fire are awesome, and "Sing a Song" is awesome.  And this video, which overlays the studio track onto some live footage (that choreography! those clothes!), is pretty awesome.  All of which begs the question:

How exactly has this not been covered by a kindie musician yet?

Earth, Wind & Fire - "Sing a Song" [YouTube]