 Playwright Neil Simon. Singer-songwriter Post Malone. Fashion designer Elie Saab. Mike, the situation of Jersey Shore fame. TV star Geraldo Rivera. The 30th president of the United States, Calvin Coolidge. And speaking of presidents, Barack Obama's daughter, Malia, celebrates her birthday on the 4th of July. The former president famously sang to her back in 2016 during a holiday event at the White House.