A chorus line is a large group of dancers who together perform synchronized routines, usually in musical theatre. Sometimes, singing is also performed. While synchronized dancing indicative of a chorus line was vogue during the first half of the 20th century, modern theatre uses the terms "ensemble" and "chorus" to indicate all supporting players in a stage production.

The can-can is a high-energy, physically demanding dance that became a popular music-hall dance in the 1840s, continuing in popularity in French cabaret to this day. Originally danced by couples, it is now traditionally associated with a chorus line of female dancers. The main features of the dance are the vigorous manipulation of skirts and petticoats, along with high kicks, splits, and cartwheels.