Here is an interesting documentation about clowning: https://www.youtube.com/watch?v=k4uT3ergY04
Vyacheslav Ivanovich “Slava” Polunin PAR (Russian: Вячеслав Иванович (Слава) Полунин) (born 12 June 1950) is a Russian performance artist and clown.
Definition from Wikipedia – Slava Polunin
Slava's Snowshow is a stage show created and staged by Russian performance artist Slava Polunin. The show won the Drama Desk Award for Unique Theatrical Experience and was nominated for the Tony Award for Best Special Theatrical Event.
Definition from Wikipedia – Slava's Snowshow