Janet Jackson's Weight Loss Ad Sparks Buzz on the Web [PHOTO]

Janet Jackson revealed a new slim figure in an ad campaign for weight loss program Nutrisystem.

In one of the ads of the campaign that started Monday, the 45-year-old singer is wearing a tight orange dress that highlights her waist and curves.

"This is what success looks like," Jackson says in a video of the ad campaign.

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Jackson's drastic weight loss sparked buzz on the web that her image had undergone digital alterations.

The singer didn't say how many pounds she dropped in the dieting program.

The singer has always struggled with her weight. In 2006 she reached her heaviest at 180 lbs, she told Jay Leno in The Tonight Show in January.