Joe la Conscience - Cameroon's 'most banned artist'
Joe de Vinci Kameni - popularly known as "Joe la Conscience" - is a Cameroonian singer known for his run-ins with authority.
He has been jailed several times - three years ago for criticising a change to the country's constitution abolishing term limits for presidents.
The singer is now found travelling on inter-urban buses to promote his music and ideas as TV and radio stations shun his songs for fear of offending the government.
His is also outspoken about world politics, like the influence of France and its leader Nicolas Sarkozy on Africa. Other views that court controversy are his support for Ivory Coast's former leader Laurent Gbagbo, who is now under house arrest, and criticism of what he sees as US President Barack Obama's "deception".
BBC Network Africa's Randy Joe Sa'ah took a bus trip with him.
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