commence to dancing scene

I found them here http://lyricsplayground.com/alpha/songs/a/attheballthatsall.shtml :)

About 2 - 3 years ago I came across a video of a flash mob dancing to this song, with the song playing in the background and dozens of participants replicating the dance. I was at work and couldn't watch the entire video. I've looked for it on YouTube since then and haven't been able to find it. Does anybody know if this video is still online?