Marcos Kostenbader Valle (born 14 September 1943)[1] is a Brazilian singer, musician, and songwriter.

[2] Valle began playing piano at the age of five, studying the instrument and classical music for thirteen years.

He and his brother and lyricist Paulo Sérgio Valle, initially refrained from incorporating politically charged lyrics, but relented once Marcos returned to his country.

According to Peter Margasak, Valle's songs "became increasingly gloomy and baroque, though its foundation never ceased to be samba and bossa nova.

Will Hodgkinson of The Times remarked that the track "Jesus Meu Rei", "sounds so much like Christian devotional pop that you would never guess it's about how much everyone hates Brazil's president.

With its tracks written alongside Leon Ware and Peter Cetera, Bush said it "offered an excellent example of boogie-funk samba.

"[8] After releasing his soul-pop output Tempo da Gente in 1986, he continued his career of composing songs for films and television shows, and collaborating with other artists.

[8] John Bush has seen him embrace "trends in the dance community" at that time, he said that its "production is crunchy and indebted to acid jazz (with even a drum 'n' bass breakbeat or two), while the title track and "Bahia Blue" are just as slick and well-produced as his '80s material.