London, Jan 16 : Queen of pop Madonna still manages to look half her age even at 50, and it is all thanks to the rigorous diet and exercise regime her personal trainer Tracy Anderson has put her on.

Madge follows a gruelling two-hour workout six days a week, and Anderson, 33, remains at her side every moment of it.

The trainer had been helping the singer maintain her health even when she was divorcing her hubby Guy Ritchie.

"There are days when she doesn't feel good and days when she's having a hard time, but Madonna still works out for two hours whatever," the Mirror quoted Anderson as saying.

"She's consistent and she doesn't ever make excuses. Nothing has changed since the divorce, Madonna hasn't changed.

"Madonna will never look her age. She doesn't even look half her age - she looks 19.

"I don't have to scream at her because she's so motivated. She organizes her time so she can train - she makes an appointment to do it and she keeps it, but two hours is the most she ever exercises in a day," she stated.

Madonna was recently described as "half-starved" but Anderson claims that she eats well and even allows herself the occasional treat, which is sugar and gluten-free.

"All my clients eat. Madonna has a very healthy appetite. She doesn't eat processed food, she's very conscious of the quality of the things she eats but she has treats - she loves cupcakes," she said.

"To say she is on a starvation diet is bull****. She burns a lot of calories.

"She will never get fat. Why would she let it go? She relaxes but she's smart, she knows that if she stops exercising she will have loose skin tone. Why should we criticize someone who works hard, is consistent and gets results because they're smart with their time?" she added. (ANI)