In the landscape of ever-changing K-pop fashion, there is one piece which changes far more infrequently. We will take a close-up look at the highly fashionable in-ear monitors (IEMs) employed by our favorite idols and what their personalized customization may reveal about the artists themselves. Many groups will be covered, from BTS to Blackpink to the rookies, and we will take a look at the fandoms’ impact on IEMs as well.