Born in 1976 in São Paulo, Brazil, Clayton Nunes started his musical career at the age of seven, playing one of his first compositions as a special guest in a music school recital. Having as piano teachers Liliane Vincenzo, Ana Maria Gorski Damaceno, and João Carlos Martins, Clayton graduated from the School of Communications and Arts at the University of São Paulo (USP) in 2000 with a degree in Music Education. In 2001 he received his degree in Audio Technology from the Audio and Video Institute of São Paulo.

In 1992 he joined the group “Metal & Cia” as a tubist, playing, arranging and producing two albums with the group. In 1996, Clayton won the “Nascente” prize as best composer. He worked as band and orchestra conductor at São Paulo Adventist University (UNASP) from 1996 to 2002. Also in 2002, Clayton received the honorable title of "Friend of the Army" for his composition of the 2nd Southeast Division of the Brazilian Army's official anthem.

During his career, he has produced and arranged over one hundred albums and composed hundreds of soundtracks for institutional and commercial videos. In 2003 he moved to the United States where he continues his work as producer, arranger, and composer.

In February of 2007 he married Juliana Carvalho in Silver Spring, MD.