I went to a Nickelback concert last year and during the song Burn It To The Ground these sets of square lights unfolded and when they lit up it was like no other light on the stage. What are these lights called. another example of these lights was the background lights when Jay-Z performed on Saturday Night Live for their anniversary.
Here are two examples:
http://www.flickr.com/photos/kassie67/3755480390/sizes/l/in/set-72157621823770622/
http://www.flickr.com/photos/kassie67/3754667361/sizes/l/in/set-72157621823770622/
Here are two examples:
http://www.flickr.com/photos/kassie67/3755480390/sizes/l/in/set-72157621823770622/
http://www.flickr.com/photos/kassie67/3754667361/sizes/l/in/set-72157621823770622/