Glow Stick Light Show

I have been to a talent show where one of my really good friend was in it, and he had came up with the idea to use glow sticks. He would have the lights turned off in the auditorium then he would have a song in which he would do the glow stick light show too. Everyone was amazed by how he had managed to do this during the talent show. We all had asked him how he had came up with the idea and he said that one night he had gotten bored and he had some glow sticks so he had attached string to the glow sticks then he blared his music, stood in front of the mirror and just started doing something random, to come up with his idea.