You Are My Sunshine.
I have sung this to Austin since he was a tiny baby in the NICU. He has always been my sunshine. Austin was only a few months old when Millie got diagnosed with Leukemia, but that didn't stop him from being the only person that could cheer Miss Millie up during her most difficult times. He has been ALL of our Sunshine and I am grateful to him for that.
I also love that he has to stop in the middle to yell at Amelia for singing with him. He is such a pain, but I sure adore him.