Courteney Cox, 56, hasn't seen her fiance, 44, for over 200 days

Courteney Cox, 56, appears youthful in a T-shirt and jeans after showing off piano-playing skills

Watch Courteney Cox and Daughter Coco Team Up for Beautiful Fleetwood Mac Cover

Courteney Cox expertly plays the piano as her daughter Coco sings Fleetwood Mac's Silver Springs