'Ghetto presidents': musicians risk all to take on authoritarian rule in Africa

Artists taking on political roles from Algeria to Zambia have been beaten, detained and killed

They call him the ghetto president", and his ambition is to bring the dreams and the sounds of the streets to the corridors of power.

Bobi Wine, a popular reggae star and prominent opposition MP in Uganda, will release a new album next month that addresses what he calls the real issues people are facing - the injustices, corruption, high taxation, misrule, abuse of human rights, dictatorship."