Guess what day it is. That's right, Throwback Thursday, and today, Live Design is looking back on some Nine Inch Nails concert tour designs that we've covered in the past. The Fragility Tour, Lights In The Sky Tour, and Tension Tour all feature the talents of longtime NIN lighting designer LeRoy Bennett, who often collaborates with highly involved NIN singer and songwriter Trent Reznor and NIN art director Rob Sheridan. Click through the images to see images and read about the designs for each of these tours.