A variety of dance forms exist, including classical ballet and modern dance, which allows more free movement and self-expression. Others perform in dance adaptations for musical shows, in folk, ethnic, tap, and jazz dances, and in other popular kinds of dancing. In addition to being an art form for its own sake, dance also complements opera, musical comedy, television, movies, music videos, and commercials. Therefore, many dancers sing and act, as well as dance. Dancers most often perform as a group, although a few top artists dance solo.
Many dancers combine stage work with teaching or choreographing.
Choreographers create original dances. Few dance routines are written down. Some choreographers use computers to develop dance routines for various productions. Working Conditions Dancing is strenuous. Rehearsals require very long hours and usually take place daily, including weekends and holidays.