The origins of Bollywood lie in Urdu theater and street plays known as nautanki. Many of the basic steps, of which there are over seven hundred, are derived from classical Indian dance. Bollywood is a highly aerobic style of modern dance that has gained popularity primarily due to the explosion of Bollywood films across the globe. Today, many choreographers create a style of dance known as “fusion,” which integrates steps from both classical and Bollywood dance.