BK, Kolo, Evinha refers to artists associated with Brazilian popular music traditions. Evinha (Evelyn Silva) is best known as a member of the vocal trio Trio Esperança, associated with MPB and Brazilian pop since the 1960s; her work is characterized by melodic vocal harmonies and interpretations of samba and popular song. BK and Kolo are names that appear in contemporary Brazilian and Lusophone music contexts as collaborators or solo artists working within popular, electronic, or urban genres; such artists often blend traditional Brazilian rhythms with modern production and sampling. Collectively, the name grouping suggests collaborative projects within Brazilian popular music spanning vintage vocal traditions and more recent popular or electronic production approaches.