Looks like the North Korean Army Men's Dance Team version of the Radio City Rockettes. Let's call 'em the "Cockettes".

History
According to Markert's December 3, 1990 obituary in the New York Times, the original height requirements for a Rockette were that she be between 5' 5" and 5' 8" tall. The average height for women at that time was 5' 2". Markert had also required Rockettes to be skilled in ballet, tap and soft shoe.
Modern Height Requirements
In 2009, Rockettes must be between 5' 6" and 5' 10 1/2" tall. The average height of an American woman in 2009 is 5' 4". Measurements are verified at the time of the audition.