Planking flash mob held at Bean

July 25, 2011 4:58:59 AM PDT
You may have heard about the planking trend. It's when you lie still on a flat surface, like a plank of wood.

A group of people organized a flash mob to plank at The Bean in Millennium Park.

It may have seemed like they were spontaneously lying down around The Bean, but no, this was planned.

Hundreds of people RSVPed on Facebook that they'd take part in the "Planking at The Bean Flash Mob."