Matthew Koma is celebrating wife Hilary Duff today and every day. "Happy birthday to my childhood crush, Janeane Garofalo, and to my best friend in the entire world @hilaryduff ..." Koma, 38, wrote via Instagram on Sunday, September 28. "My favorite part about this day is how the people in your life get a chance to give you your flowers, and tell you how insanely much you mean to us. You make everybody feel like the center of your universe. Your friends, your kids, your family.