Sidney Eun is a student and visual educator from Orange County, CA. She has taught ensembles such as Point Loma HS, Sunny Hills HS, and El Dorado HS, in both indoor percussion and marching band.

Sidney has an extensive marching career, beginning at Gold Drum and Bugle Corps in 2019. She went on to march 2023 through 2025 with the Blue Devils. Her marching career also includes several years of WGI indoor percussion, including RCC Indoor Percussion, Broken City Percussion, and Meraki Percussion.

Outside of the marching arts, Sidney is currently pursuing a degree in Kinesiology from California State University, Fullerton, and aspires to have a career in medicine.