Marcos Kostenbader Valle (born September 14, 1943 in Rio de Janeiro)[1] is a Brazilian singer, songwriter and record producer. He has produced works in many musical styles, including bossa nova, samba, incidental music and fusions of American/European rock and dance music with Brazilian styles.
Valle's talent was evident from his high school years, which coincided with the height of the Bossa Nova movement in Rio. His classmates included future legends like Edu Lobo and Dori Caymmi, and his composition "Sonho De Maria" was included on the Avanco album by the highly influential Tamba Trio in 1963. With his brother Paulo Sergio Valle as his lyricist, he had already built an impressive portfolio of songs, prompting the Odeon label (a subsidiary of EMI) to sign him to a recording contract. His debut album Samba Demais was released early in 1964. His reputation quickly spread, and his contemporaries on the music scene (including Wilson Simonal, Elis Regina, Nara Leão and many others) lined up to record his songs. A second album, O Compositor e o Cantor, followed in 1965, and featured the debut of what would become his most recognizable song, "Samba De.