Upon seeing their small sign #shishomob, It reminded me of a similar scene in the movie Step Up.
Team Beauti4 is a dance unit of 4 girls who dance for fun. Shisho means teacher in Japanese, it is a popular character from comic called "Higanjima". One of the member is a big fan of the Higanjima and that's how they have decided to use the mask for thr Halloween prank flush mob as their first challenge.
The four ladies are composed of professional dancers who usually dance for different theme parks, some of them are teachers at dance studio and choreographers.
東京スカイツリー👊🏻✨#東京スカイツリー #skytree #flushmob #フラッシュモブ #shishomob #師匠モブ #浅草 #Asakusa pic.twitter.com/IGhCPGet8x— #shishomob (@beauti4_shisho) Oktubre 27, 2016
Catch their latest performance in Asakusa: