Sound of Music Train Station

Sound of Music Train Station is a video of a performance of the Sound of Music in a public space (train station).

Edit: more context from the Huffington Post:
"A video of almost 200 people taking over Antwerpen's Centraal Station in Belgium and doing a carefully choreographed dance to the Do Re Mi song (aka Maria's Dance aka Maria's Song) from "Sound of Music" has garnered almost a million views on YouTube, and continues to grow, sprouting a new round of google trends today.

People like viral videos, they like flash mobs, and they like weird junk on the Internet, but this video has struck an especially emotional chord with those who've watched it...It's a publicity stunt for a reality show, but that doesn't seem to bother anyone, they just like it for what it is: a really cool, well shot video, that lets average people express their joy and talent and make those around them happy for a brief period. The producers chose the exact right song: one that harkens back to our childhoods, but also recalls Maria's unabashed upbeatness in the face of evil. It's a publicity stunt for a reality show, but that doesn't seem to bother anyone, they just like it for what it is: a really cool, well shot video, that lets average people express their joy and talent and make those around them happy for a brief period. The producers chose the exact right song: one that harkens back to our childhoods, but also recalls Maria's unabashed upbeatness in the face of evil..."

(From Justine and Emily)