Janet Jackson has never been ashamed to talk about her weight loss and gain. For this, weight loss company Nutrisystem has tapped the 'Rhythm Nation' singer as the face of its newest campaign, Nutrisystem Success.

According to Reuters, Nutrisystem chief executive Joe Redling approached Jackson about his weight-loss program after reading her New York Times best-selling book, 'True You,' which details her struggles with body image and personal relationships. Redling offered the chanteuse Nutrisystem's pre-packaged foods to sample while on tour. After that, Jackson agreed to sign on for the endorsement deal.

"When I was in hair and makeup, we were all taste testing," Jackson revealed. "Everybody was going crazy for it."

On Nutrisystem, people can expect to lose at least 1 to 2 pounds per week. While Jackson is determined to help America slim down, she said that she's not putting a number amount as she goes through the plan. "I'm going about this a different way by not putting a pound amount on it," she stated. "It's about when I feel healthy, about when I feel good. That is how I want to be."

Those who enroll in the plan will also be helping to put a dent in the hunger crisis throughout the world. Nutrisystem will donate $1 worth of food to people in need for every pound its dieters loose in 2012. Nutribank.org was created by Jackson and Redling to work with hunger organizations around the world.

Watch 'Where Does Janet Stash Her Nutrisystem Meals?'