Old songs...
http://www.youtube.com/watch?v=HAfFfqiYLp0
https://www.youtube.com/watch?v=kNzDO8eO220
https://www.youtube.com/watch?v=_ABk7TmjnVk
https://www.youtube.com/watch?v=xuhl6Ji5zHM
https://www.youtube.com/watch?v=WcH9EDlTW8U
https://www.youtube.com/watch?v=xsaypiORkOw
https://www.youtube.com/watch?v=Cra3VGEBoO4
https://www.youtube.com/watch?v=uxLWG0Mhxl8
https://www.youtube.com/watch?v=BoEKWtgJQAU
floating, moving concert stage...
https://www.youtube.com/watch?v=EoO50aQuWZw