Not strictly a British group, but packaged as part of the British Invasion, Them forged their hard-nosed R&B sound in Belfast, Ireland, moving to England in 1964 after landing a deal with Decca Records. The band's simmering sound was dominated by boiling organ riffs, lean guitars, and the tough vocals of lead singer Van Morrison, whose recordings with Them rank among the very best performances of the British Invasion. Morrison also wrote top-notch original material for the outfit, whose lineup changed numerous times over the course of their brief existence. As a hit-making act, their résumé was brief -- "Here Comes the Night" and "Baby Please Don't Go" were Top Ten hits in England, "Mystic Eyes" and "Here Comes the Night" made the Top 40 in the U.S. -- but their influence was considerable, reaching bands like the Doors, whom Them played with during a residency in Los Angeles just before Van Morrison quit the band in 1966. Their most influential song of all, the classic three-chord stormer "Gloria," was actually a B-side, although the Shadows of Knight had a hit in the U.S. with a faithful, tamer cover version.