My mum sent me this video (thanks, mum) knowing that the cleverness of the "rainstorm" would appeal to me. As it turns out the hand-rubbing, finger-snapping, thigh-slapping, foot-stomping sequence is an activity that i have done with groups for over 20 years. I've always used it as a focusing or calming exercise. It works wonderfully as a way of closing a workshop and it has many other uses, i am sure. This Slovenian choir's use of it as an intro to their cover version of Toto's Africa is inspired. And the foot-stomping which each of the rows does sequentially is outstanding. And i confess a fondness for the occasional pop song.
Here's a downloadable activity description of "Rainstorm" which you can use with groups. Try it. It's a moving activity, one that i always find connects me with a deep stillness in the world.