Janet Jackson shows off her slim frame at amFAR’s Cinema Against AIDS Gala in Cannes

Janet Jackson arrived at amFAR’s Cinema Against AIDS annual ball at Cannes in a stunning bright white Pucci by Peter Dundas gown that showed off her slim, toned frame.

Janet Jackson, 46, paired the show-stopping number with shoes by Giuseppe Zanotti and jewelry by Pomellato.

The singer has become a spokesperson for NutriSystem after her most recent successful attempt to battle the bulge.

Michael Jackson’s little sister is dedicated to helping others shed weight, as much for their health as anything else as she has admitted that she put her own in danger by being overweight.

Janet Jackson told Prevention magazine: “Health was always a concern. When I gained weight in 2005, my nutritionist was very worried. I was close to having diabetes.

“Even when I lost it and then gained quite a bit back, there was always the thought of heart disease.”

But Janet Jackson credits her trainer with helping her get motivated, she said: “I don’t like to work out, and I get bored easily. [Trainer] Tony Martinez is great. When I’m getting ready for a tour, I’ll work out with the dancers. He’ll put us in teams and we’ll do all sorts of drills and races.”

The singer adds: “I think people really connect with the idea of someone who’s gained and lost weight in a very public way, and also someone who’s an emotional eater.”

In the commercial, released last month, a newly-slim Janet Jackson said: “This is what success looks like.”

Back in 2006, Janet Jackson weighed 180 lbs before slimming down. However following the death of sibling Michael three years later, she began to pile on the pounds again.

Janet Jackson has championed the brand on Twitter, simply saying: “Nutrisystem works. #SUCCESS”

In her book, True You, release last year, Janet Jackson wrote: “For more than three decades, I’ve struggled with yo-yo dieting. Some of my battles with weight have been very public.

“But most of them have been internal. Even at my thinnest, when my body was being praised, I wasn’t happy with what I saw in the mirror or how I felt about myself.”