Calema

Calema are a duo music duo from São Tomé and Príncipe with origins in Portugal formed by the two brothers António Mendes Ferreira (born 5 April 1992) and Fradique Mendes Ferreira (born 19 March 1987). The name of the duo refers to the special undulation on the African coast.
Early life.
They started singing together at a very young age as they took music as a hobby. In 2008 they came to Portugal to pursue their professional degrees on the music industry. Fradique pursued a degree in Multimedia in Évora and António, a degree in Video Production in Lisbon. In 2011 they went to France with their family and kept on doing music, as they created their cover channel on YouTube.
Career.
Three years after they were in France, Anselmo Ralph noticed them and made them enter the Portuguese music scene. Later on, they produced the album ""A Nossa Vez" or simply "A.N.V" which included the song "A Nossa Vez"." The song "e"nded the year of 2017 as the most viewed music video on YouTube sung in the Portuguese language.
In February 2019 they were announced as the composers and interpreters of the song "A Dois", which will participate on the Festival da Canção 2019.