Bo Koster is an American musician and songwriter, best known for his work as a keyboardist and guitarist. He gained prominence as a member of the rock band My Morning Jacket, contributing to their distinctive sound with his versatile playing style. Koster has also collaborated with various artists and bands, showcasing his talent across different genres. In addition to his work with My Morning Jacket, Koster has been involved in several side projects and has released solo material. His musical contributions have earned him recognition in the indie rock scene, where he continues to influence and inspire fellow musicians.