Clockwise from upper left: Angel Olsen, Ages And Ages, Death Grips, GEMS. Courtesy of the artists hide caption

itoggle caption Courtesy of the artists

Moogfest always draws a creative crowd. But the festival's proximity to Halloween inspires some fans to dress in unusual costumes. Adam Kissick for NPR hide caption

itoggle caption Adam Kissick for NPR

MC Ride of Death Grips. Loren Wohl for NPR hide caption

itoggle caption Loren Wohl for NPR