Dreampop band Purity Ring is well known for their wild light shows. Instrumentalist Corin Roddick uses a custom-built instrument that allows him to play while controlling the lights, which usually flash in time to the music. The duo's current setup is dreamy. This weekend, they performed "Begin Again," one of the singles off their last album, Another Eternity, on the outdoor festival stage at Jimmy Kimmel Live. The stage was covered in hanging lights, flashing hues of purple and orange in time with Megan James' vocals. It's a fever dream come true, and their setup makes for one hell of a show.