Dancing flash-mobs are a world-wide phenomenon, and today we noticed this one performing an "All You Need Is Love" and assortment of other songs in a train station in the Czech Republic, where this video is among the most viewed today.



(Not entirely sure on what's happening there at the 2:13 mark...)

It seems one of the biggest trends of this early holiday season is flash-mobs singing "Hallelujah." We've already seen videos from Canada and Philadelphia gain a lot of attention.