I was enjoying a concert and a friend of mine took a photo then i took a look at the photo and i saw strange lights look up to the sky and they were just right up doing strange movements appearing and dissapering very fast moving up and down, they seemed to be trying to form a triangle at least three of them but they all were a line itself. when i looked at the photo thought it was a reflect but when i looked at the same point of the sky realized it wasn't. my first reaction was to tell them my friedns but they were skeptical and they didn't pay much attention to the objects i paid attention because the moving pattern was so incredible that i was sure it wasn't globes or planes or whatever i saw before in my life. the objects were there about 15 to 20 minutes from the time i realized of them after dissapering in secuential, like turning off lights each one after the other.