Swing in 1927 was originally named the Lindy Hop named by Shorty George Snowden. There have been 40 different versions documented over the years; most common is the East Coast swing which is performed in the American Smooth (or American Rhythm) only in the U.S. or Canada. The East Coast swing was established by Arthur Murray and others only shortly after World War II. Swing music is very lively and upbeat and can be danced to jazz or big band music. The swing dancing style has much bounce and energy. Swing also includes many spins and underarm turns. East Coast swing is performed as an American Rhythm dance.