Madonna’s birthday was a family affair! The Queen of Pop turned 65 on Aug. 16, and she celebrated the milestone with her six children, Lourdes, 26, Rocco, 23, David, 17, Mercy, 17, and 10-year-old twins Stella and Estere. The “Material Girl” singer commemorated her special day — and son Rocco’s — with a trip to Lisbon, Portugal, where she enjoyed a beach day and birthday bash, both of which she documented on her Instagram Story. On Saturday, she posted photos of her children enjoying some fun in the sun, alongside which she wrote, “Birthday fun at the beach!”