Happy birthday to my car pool karaoke partner. 20 years today!!!!!! You are truly one of a kind. I love you so much. Your dad, sisters and I are so proud of you in every way imaginable. Happy Birthday my angel. Mom A post shared by Faith Hill (@faithhill) on Aug 12, 2018 at 9:33pm PDT Faith Hill and her daughter car pool karaoke! Tim McGraw and Faith Hill's daughter Maggie turned 20.