Angelique Kidjo sings for Nelson Mandela at the first 46664 concert in Cape Town

Mandela was imprisoned on Robben Island in 1964, and was the 466th prisoner to arrive that year. The prison administration's scheme of numbering prisoners was to follow the sequence number of the prisoner (466 in his case), with the last two digits of the year (64).

The number was imposed on him by the prison for over 25 years, until his release in 1990. "Prisoner 46664" continues to be used, as a reverential title for him, and the Nelson Mandela Foundation uses 46664.com

On 29 November 2003 an event called the 46664 Concert was held at Green Point Stadium, Cape Town. It was hosted by Mandela and its goal was to raise awareness of the spread of HIV/AIDS in South Africa. Angelique sung her song Afirika and also joined Peter Gabriel and Youssou N'Dour on "In Your Eyes"

Angelique Kidjo is an ambassador or 46664 International. 46664 Ambassadors are musicians, artists and sportsmen and women who are committed to supporting 46664 and the mandate its takes forward to find new hands to lift the burdens.