The pirouette is used in most genres of dance

Pirouette is a ballet turn that is used in most genres of dance. The turn is executed on one straight supporting leg while the other is bent in a 90 degree angle against the supporting knee. The pirouette is a full revolution in a controlled balance on one leg. Once you have mastered the single pirouette then you move on to try for doubles and many, with years of practice have achieved multiples of more than eight full revolutions.

Dancers begin pirouettes after learning the fundamentals of ballet technique including the five positions of feet and arms, demi and grande plies, tendus, and releve.  Ballet is essential in a dancer’s training for control, discipline, body awareness and balance.
 

Finding Your Center
Using simple physics, the dancer is spinning on the supporting leg pushing against the floor while the upper body is pulled up in a perfect vertical line from the top of the head to the toes. The force against the floor creates the acceleration for the pirouette. Finding your center is achieved by keeping your body tight with a closed ribcage and pelvis tucked under and with your shoulders squared over your hips.             
 

Using Your Spot
Fixating your eyes on one spot as you spin is key as you are learning and perfecting your pirouette. Spotting will keep you from getting dizzy and will give you more effective turning power and quickness.
 

Control
Practicing your balance at the barre and in center will create muscle memory.  The control of a sustained pose will ensure the quality of your pirouette.
 
Putting these techniques into your practice will give you clean pirouettes that you can be proud of.