Zoila Augusta Emperatriz Chávarri del Castillo, known as Yma Sumac, was a Peruvian-born vocalist, composer, producer, actress and model. She won a Guinness World Record for the Greatest Range of Musical Value in 1956. "Ima sumaq" means "how beautiful" in Quechua. She has also been called Queen of Exotica and is considered a pioneer of world music. Her debut album, Voice of the Xtabay (1950), peaked at number one in the Billboard 200, selling a million of copies in the United States, and its single, "Virgin of the Sun God ", reached number one on the UK Singles Chart, becoming an international success in the 1950s. Albums like Legend of the Sun Virgin (1952), Fuego del Ande (1959) and Mambo! (1955), were other successes.

Voice of the Xtabay is the first studio album by Peruvian soprano Yma Sumac. It was released in 1950 by Capitol Records. It was produced and composed by Les Baxter, along with Moisés Vivanco and John Rose. Sumac sings on the album, accompanied by ethnic percussion and musical variations influenced by the music of Peru. Sumac had a notable vocal range, of about five octaves.