For what could be Serena Williams’ final U.S. Open, the tennis icon twinned with her daughter, 4-year-old Olympia Ohanian. Olympia joined her dad, Alexis Ohanian, in the stands to cheer for the tennis icon. Many stars were also there to root Serena on, including Bella Hadid, Gayle King, Spike Lee, Queen Latifah, Hugh Jackman and more.