Celebrating her 59th birthday this week in Italy, People reports Madonna did something she'd never done before: shared a photo of herself with all six of her children. The photo—posted Friday on Instagram—shows the pop star with Lourdes, 20; Rocco, 17; Mercy James, 11; David, 11; and twins Estere and Stella, 4. It was taken Thursday at Madonna's gypsy-themed birthday party in Lecce. Madonna adopted Estere and Stella from Malawi last February. (More Madonna stories.)