In the modern concert world, technology makes it easier for fans to interact with their favorite artists and events. Examples of innovations such as QR codes, a ...

LED wristbands are now a common feature of large arena concerts and events ... require some pre-planning for more complex light displays, to ensure each section of the audience is individually ...

From arena-sized concerts like Taylor Swift or Coldplay to the Super Bowl halftime show: wearable LEDs have turned the audience into part of the show. WSJ goes behind the scenes with one LED ...