Matthew McConaughey, Justin Timberlake, Leonardo DiCaprio and More Stars at 2023 US Open

Matthew McConaughey, Justin Timberlake, Leonardo DiCaprio, Kylie Jenner and more stars attend 2023 US Open. An eyewitness tells ET that Kylie and Timothee Chalamet were “all over each other” at the US Open. “They were in a private suite [Cadillac suite]. They made small talk with some of the other celeb guests in suite, but really, they just had eyes for each other — and the match,” says the eyewitness.