Samuel Rosa de Alvarenga is lead singer and guitarist of Brazilian rock band Skank. He has a psychology degree from Universidade Federal de Minas Gerais.
Samuel writes the music for most of the group's songs, with 80% of the lyrics by Chico Amaral. Other songwrting partners were Nando Reis, Arnaldo Antunes, and Lô Borges.
Samuel is an avid football player and supports Cruzeiro.
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