"Nashville" star Connie Britton, 45, recently adopted her first son, Yoby, from Ethiopia. And despite the financial boon that her TV success has wrought, single parenthood is still tough. "The schedule is insane to the point where I lose a lot of sleep at night worrying about how little time I have to sleep and mostly what little time I have to be with my son," she tells More magazine in People's sneak peek of the March cover story. "The flip side of that is, he's doing great. He comes to the set every day. As working moms go, at least I have that luxury," she admits. "Being a single mom is challenging, but never in a million years would that have stopped me. You get an idea in your head and you're going to do it."