Most people have a repertoire of song lyrics in their head. This activity offers the fun of recalling them, the opportunity to belt them out without anxiety about singing "well", and the aspect of learning which songs "everyone" in the group knows and which are familiar to only you.
The game enables participants to get to know each other and have fun at the same time. Also since it takes a lot of moving it can be used as an energiser too.
A rapid game of name learning with probably a lot of funny moments. Besides it teaches particiapants how to communicate and strategize in an effective way without being explicit about these goals.
