Kirsten Flagstad (1895-1962) was a renowned Norwegian soprano celebrated for her powerful voice and exceptional interpretations of Wagnerian roles. Primarily active in the early to mid-20th century, she is best known for her performances as Brunnhilde and Isolde in Richard Wagner's operas, particularly "Der Ring des Nibelungen" and "Tristan und Isolde." Flagstad's career took off after her 1935 debut at the Metropolitan Opera, where she quickly became a leading figure. Her notable recordings include the complete Ring Cycle and "Tristan und Isolde," which showcase her dramatic range and vocal prowess. Flagstad's impact on the world of opera was profound; she helped to elevate the soprano voice's status in the Wagnerian repertoire and inspired a generation of singers with her artistry and technique. Her performances were characterized by a combination of lyrical beauty and dramatic intensity, making her a pivotal figure in 20th-century opera. Flagstad's legacy endures, as she is often regarded as one of the greatest Wagnerian sopranos of all time.