The biggest Random Act of Culture yet took place in Philadelphia Saturday – with more than 650 singers bursting into Hallelujah from Handel’s Messiah in the middle of a downtown Macy’s. The world’s largest pipe organ – with 28,000 pipes – accompanied them.

I could go on, but the video tells the whole story. You can’t watch it and not be moved. Some viewers were moved to tears. It’s a great reminder of how important the classical arts are to our lives.

Thanks to Knight Foundation’s partner, the Opera Company of Philadelphia, for pulling the event off.

Knight Foundation is funding 1,000 Random Acts of Culture over the next three years. So if you live in any of these eight cities – Akron, Charlotte, Detroit, Macon, Philadelphia, San Jose, St. Paul and Miami – be on the lookout and have your cellphones ready.