Casker is a South Korean electronic music duo that has captivated audiences with their ethereal and intimate blend of sounds. Comprised of vocalist Yoongjin Lee and producer Juno Lee, the group first emerged onto the music scene in the early 2000s. Known for their emotive vocals and delicate electronic arrangements, Casker has become a staple in the Korean indie music scene, offering a soothing and introspective musical experience that often explores themes of love, solitude, and the intricacies of human emotion.

Their discography includes a variety of single releases and albums that showcase their evolution as artists, melding diverse influences from electronica, jazz, and pop. The duo has been consistently lauded for their ability to craft sonic landscapes that resonate with listeners, evident in songs like "Small One," "Picaresque," and the contemplative "teardrop." Their music often features atmospheric synths, subtle beats, and the heartrending clarity of Yoongjin's vocals, creating a unique soundscape that is both haunting and comforting. With a career that spans over two decades, Casker continues to enchant both new and long-standing fans with their releases, including softer acoustic versions of their tracks such as "고양이와 나 Cat and Me (Acoustic Version)" and "칫솔 Toothbrush (Acoustic Version)", which offer a more stripped-down and personal listening experience.