Model-turned-singer CARLA BRUNI-SARKOZY's New York concert on Saturday (18Jul09) in which she'll mark the 91st birthday of Nelson Mandela, will be her first since becoming France's first lady in February 2008. The Italian-born songstress will join an all-star line-up, including Aretha Franklin, Stevie Wonder and Alicia Keys, as they celebrate the former South African president and his legacy at Radio City Music Hall.