The 'American Idol' alum, 39, blames her large age gap with 74-year-old husband David for their disagreement over how to raise their only child, two-year-old Rennie.
Joining Eddie Cibrian in the Netflix comedy created by Caryn Lucas, the former 'Smash' actress will play a struggling singer taking care of a real-life cowboy's five kids.
The 'American Idol' alum, who has to postpone her November tour due to extreme vocal fatigue, promises to go back singing again after she rehabilitates her voice.