Dolly Parton only eats junk food on weekends.

The country music legend sticks to a low-carbohydrate diet throughout each week to maintain her slim figure, but allows herself treats on weekends when she goes out with her husband Carl Dean.

The 65-year-old singer-and-actress said: "I do have to watch my weight because I'm only 5ft and you can't hold on to too much weight when you're so short.

"So I stay on a low-carb diet pretty much through the week and eat what I want on weekends. And of course nothing matters on Thanksgiving and Christmas!"

But even if she is just going out to a local fast food restaurant near her Nashville home, Dolly always ensures she is dressed up because she likes to look good for her husband at all times.

The blonde star - who is famous for her huge fake breasts and over-the-top outfits - explained: "I don't want to look good for everyone else and like a slouch for him! So even if we're just driving around in our RV camper and hitting all the local fast food joints I'll tease my hair and put it up in a little scrunchie."