Dolly Parton is celebrating her love! In honor of Valentine's Day, the 76-year-old singer shared a rare throwback pic of herself with her husband of more than five decades, Carl Thomas Dean.In the sweet shot, Dean offers Parton a kiss on the cheek as the «9 to 5» singer smiles for the camera.«Happy Valentine’s Day y'all!» Parton captioned her post. «Remember to squeeze your loved ones a little tighter today and tell them you love 'em!»A post shared by Dolly Parton (@dollyparton)When ET's Rachel Smith spoke to Parton in October 2020, she opened up about why she and Dean have kept their relationship private since tying the knot in 1966.«He does not want to be in the spotlight at all,» Parton said. «It's just not who he is.