Martin O'Malley is an American musician, singer, and songwriter known for his work in the folk and rock genres. He gained prominence as the lead vocalist and guitarist for the band O'Malley's March, which blends traditional Irish music with contemporary styles. His music often features themes of social justice and community. In addition to his band, O'Malley has released solo albums that showcase his songwriting skills and musical versatility. He is also recognized for his engaging live performances, where he connects with audiences through storytelling and heartfelt melodies.