Concertgoers Scream at the Top of Their Lungs for Skunk Anansie

British rock band, Skunk Anansie, urges would-be Dutch concertgoers to scream their lungs out to win free tickets to their concert. Participants in Amsterdam and Utrecht were able to measure their success through an interactive decibel meter; they also received a movie clip of their public vocal outburst on their SmartPhone that was recorded through the webcam installed in the bus shelter.