Janet Jackson shows off her slim figure in Nutrisystem ad

Janet Jackson looks confident and happy after Nutrisystem weight loss programme helped her shed the pounds.

Janet Jackson, 45, who has battled the bulge over the years, is in incredible shape in the promo snap from her Nutrisystem ad.

The sister of the late megastar Michael Jackson shows off her figure in a tight orange dress and sky high Louboutin heels.

Janet Jackson is yet to reveal how much weight she has lost – but a sneak peek of the ad has been released.

Newly-slim Janet Jackson proclaims in the commercial: “This is what success looks like,” before going on to describe the Nutrisystem plan, based on eating low glycemic foods which leave you feeling full for longer.

While she was once revered for her incredibly toned abs, Janet Jackson’s weight has yo-yoed over the years.

Back in 2006 the singer tipped the scales at 180 lbs before slimming down.

However, following the death of her brother Michael in 2009, Janet Jackson started to pile on the pounds.

Janet Jackson is the latest celeb to use Nutrisystem to fight the flab, with Marie Osmond having previously shed 50 lbs on the programme.

The singer documented her weight struggle in her 2011 tell-all book True You: A Journey to Finding and Loving Yourself in which she described herself as an “emotional eater” with serious body image issues.

Janet Jackson’s ad will premiere in full next Monday.