MK Closes at 7pm May 31, 2015. Why?

[Fantaluminishes]

Anybody have any idea why the Magic Kingdom would be closing at 7pm on this day? It's a Sunday, and it's a week after Memorial Day. I'm guessing a special event of some kind, but not a public event. Any thoughts out there?

 

[maxiesmom]

According to Easy WDW it is a "private US Travel IPW event".

 

[jsilvers]

See http://www.visitorlando.com/ipw2015/eveningevents.html.