Even with the beautiful spring weather it seemed like just another day at the Ontario Science Centre, until the clock struck noon. Then, spontaneously and just like they do in the musicals, three hundred kids between the ages of 7 and 14 swarmed out of the walls to fill the main hall, bopping and dancing to the song "Crabbuckit" by k-os. Flash Mobs, as they are known, are a phenomenon borne of the internet where the ability to use e-mail and social networks makes it easy to co-ordinate such mass gatherings in secret and, although originally created for outogoing adults and expressive bloggers, is quickly being picked up as a fun activity for kids. 

Today's Flash Mob, or Dance Mob, was organized by the National Ballet School through carefully crafted YouTube videos distributed to kids and parents interested in taking part. Hearing that his song "Crabbuckit" was to be used, Canadian musician k-os made a secret appearance at the Ontario Science Centre to watch the performance and meet with the kids afterwards.

You can watch the spontaneous performance below plus my interview with choreographer Courtnae Bowman and one of the dancers, Olivia McAlpine of the National Ballet School, below.