Swing is a sub-genre of jazz characterized by rhythmic tension created when part of a band drags the beat back while other instruments drive it forward, and associated with rhythmic dances such as the jitterbug and the lindy hop. It was created by big bands of the 1930s including those of Benny Goodman and Fletcher Henderson, and popularized by such groups as the Glenn Miller Orchestra. Big bands as well as smaller combos have continued to play swing music into the 21st Century. New Swing orchestras of the 1990s used younger musicians and edgier attitudes to attract fans in their teens and 20s much as Benny Goodman did some 60 years earlier.