Carla Bruni-Sarkozy and Dave Stewart perform during the tribute – Mandela Day: A 46664 Celebration ConcertPhotograph: Michael Loccisano/Getty ImagesAretha Franklin takes the stagePhotograph: Frank Micelotta/Getty ImagesActor Morgan Freeman arrives as a fan waits for an autographPhotograph: Peter Foley/EPAWill.i.am takes to the stage Photograph: Brendan Mcdermid/ReutersSinger Jesse McCartney performsPhotograph: Charles Sykes/APAretha Franklin and Josh Groban perform during the finalePhotograph: Timothy A. Clary/AFP/Getty ImagesAngelique Kidjo and Alicia Keys dazzle the crowdsPhotograph: Frank Micelotta/Getty ImagesThe Senegalese singer Baaba Maal on stage Photograph: Frank Micelotta/Getty ImagesStevie Wonder perfroms for the New York crowdPhotograph: Frank Micelotta/Getty ImagesGloria Gaynor on stagePhotograph: Michael Loccisano/Getty ImagesThe Italian singer Zucchero sings at the concertPhotograph: Frank Micelotta/Getty ImagesQueen Latifah on stagePhotograph: Michael Loccisano/Getty ImagesDave Stewart, Cyndi Lauper, Vusi Mahlasela, Angelique Kidjo, Tim Robbins, Morgan Freeman, Baaba Maal and Jesse Clegg perform during the finalePhotograph: Michael Loccisano/Getty ImagesStevie Wonder and ensemble during the finalePhotograph: Timothy A. Clary/AFP/Getty Images