Bo Koster is an American musician known for his work as a keyboardist and vocalist. He gained prominence as a member of the band My Morning Jacket, contributing to their unique sound that blends rock, country, and psychedelic influences. Koster's musical style often features rich harmonies and intricate arrangements, showcasing his versatility as a performer. In addition to his work with My Morning Jacket, Koster has collaborated with various artists and projects, further expanding his musical repertoire. His contributions to the music scene highlight his ability to fuse different genres, making him a notable figure in contemporary music.