Jason Aldean just celebrated a huge milestone over the weekend, his oldest daughter Keeley graduated High School. He shared a picture of the proud moment, showing his daughter holding her diploma with the caption; Hard to believe this kid graduated from high school tonight. Really excited to see what the next chapter in life holds for her. Your future is what u make it, so go get em Keeley. We love you!" Congratulations Keeley.... now the fun begins!