Open letter to South Africa’s students‚ universities and government‚ represented by Minister in the .
Mariah Carey and Bill and Hillary Clinton will be honoured at the VH1 Save The Music Foundation's 10th anniversary gala in September .
A host of artists - including Roger Waters, Jon Bon Jovi and John Mayer - will perform at the ceremony at New York City's Lincoln Centre.
The Clintons will be honoured for their work for past Save The Music campaigns.
In 1993, when he was US president, Clinton donated a saxophone to the foundation. The foundation promotes music in schools.
Foundation director Paul Cothran said: "Throughout the years, Bill and Hillary Clinton have exemplified incredible dedication and support for the VH1 Save The Music Foundation and it is an honour to have them join in celebrating our 10th anniversary." - Wenn