Only a few South African musicians like Vusi Mahlasela were scheduled to play
More South African acts will play in a concert on the eve of the football World Cup in June, officials say.
The move follows anger from South African musicians that international singers would headline the Fifa event.
Now the local organising committee, the arts ministry and a trade union said the concert to take place on 10 June would be "representative".
The Creative Workers Union of South Africa has now called off their planned demonstration for Thursday.
The final decision of precisely who would appear will be made after consultation with fans and host cities.
"We've always maintained that the incredibly talented South African and African music industry will play a major part in the tournament's off-field success and character," said Danny Jordaan, head of the World Cup Organising Committee South Africa.
A Los Angeles-based company organising the Kick Off Celebration Concert at Soweto's Orlando Stadium had scheduled the appearance of well-known international musicians such as Alicia Keys, Black Eyed Peas and Shakira.
Some South African artists were in the programme, but there was concern in that local acts were not being adequately represented
"It is not fair that mainly artists from outside the country and the continent should welcome our guests," the arts ministry said in a statement on 26 March 2010.
"We cannot condone South African artists being marginalised in their own motherland."