Jackie McCauley is a Northern Irish musician known for his contributions to the folk and rock genres, particularly within the context of the 1960s and 1970s music scene. He gained prominence as a member of the influential band Them, alongside Van Morrison, where he played keyboards and contributed to their distinctive sound. After his time with Them, McCauley became a key figure in the folk-rock movement, joining the band The Belfast Gypsies and later forming the group Sky. His notable works include tracks like "Gloria" and "Mystic Eyes," which are celebrated for their blend of rock and traditional Irish music elements. McCauley's impact on music extends beyond his performance; he has been recognized for his ability to merge various musical styles, influencing subsequent generations of artists in the folk and rock genres. His work has left a lasting legacy, particularly in the context of Northern Irish music, contributing to the rich tapestry of the British and Irish rock movements. Despite not achieving mainstream fame, McCauley remains respected for his artistry and the authenticity he brought to his music.