The wave is a type of metachronal rhythm achieved in a packed stadium or other large seated venue, when successive groups of spectators briefly stand and raise their arms. Immediately upon stretching
Crowd wave at the 2005 FIFA Confederations Cup
Krazy George cheering at a San Jose State women's volleyball game, 2018
The wave performed at the 2013 Big Day Out music festival in Sydney, Australia
George Henderson, known as Krazy George, is an American professional cheerleader who has been credited by some sources as inventor of the wave.
Henderson in 2007 at Spartan Stadium
Henderson first performed "wave" at McNichols Sports Arena (1979)