At the start of the video, the members announced, "We will be number one!" as they took their places. �The rules were as follows: 1) Don't be intimidated by the song changes, 2) Make sure to be in sync with the music, 3) 5 tries in total, minus 10 points for every mistake, 4) additional 50 points for completing bonus mission.

They were given a bonus mission to show off their signature 'bang bang' move shooting at the balloons. �The girls then took turns aiming at the target as the music began.

Dressed in military attire, the girls were in sync while performing their hit song. �Members Sowon and SinB�also demonstrated their tactical skills with their signature 'bang bang' move.

Check out their fun time on 'Let's Dance' above!

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