The 62-year-old pop icon's son David Banda, 15, and daughter Mercy James, 14, as well as her eight-year-old twin girls Stella and Estere, were all born in Malawi.She also has two biological children -- Lourdes, 24, with her former personal trainer Carlos Leon, and Rocco, 20, with her ex-husband Guy Ritchie. Madonna took to Instagram to share videos and photos from her trip.