Yikes. The Second Baptist Church in Houston got 2000 people in white pants and multi-colored tops together to a 'flashmob' event they called "Dance your shoes off". It celebrates auto-tune, no wait, the resurrection of Jesus, and isn't so much a "dance" as a giant aerobics session. Everyone who participated in the event donated a new pair of shoes to local mission agencies, so there's that, I guess.
Flash mobs are officially over now.
The Song was actually commissioned for the event, it's is called "Rise Up" sung by Lauren James Camey and produced by Joshua Moore. It's available on itunes. And yes, they're inspired by the Hungarian members of Faith Church, who did a flash mob for Christ already. With auto-tune. Dearie me, auto-tune needs to die.