Janet Jackson and Nutrisystem Slim: Singer Debuts Weight Loss (VIDEO)

Janet Jackson appeared slim in a Nutrisystem ad released Monday. The video shows the celebrated music artist, who has lost a considerable amount of weight since last year.

Janet Jackson's Nutrisystem slim ad showcases the 45-year-old singer in a form-fitting tangerine dress and in a blouse tied with a black belt, calling attention to her newly-defined waist. Previously, the R&B singer weighed over 180 pounds in 2006.

"This is what success looks like," claims Jackson in the commercial, which also shows tantalizing foods like pizza, tacos, ice cream, and protein shakes. Although Jackson didn't say exactly how much she'd lost since using Nutrisystem, it's a clear drop from what she weighed in December, when she joined the program.

"For Janet, it's about feeling good," a Nutrisystem representative told ABC news.


"Feeling good" was definitely important to Jackson, who revealed in her book that her self-image was detrimental to her well-being, even when she was thin.

"Some of my battles with weight have been very public," Jackson wrote in "True You: A Journey to Finding and Loving Yourself." "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."

She also revealed that the source of her torment was sometimes none other than her own brother, the late King of Pop, Michael Jackson.

"It really got to me and I took it way too seriously," Jackson said of her weight struggles on the "Good Times" television show during the 1970s. "But the more [Michael] joked about my big behind, the more determined I was to be thin. Even as a little kid."

Now, however, Jackson's weight seems to be under control, possibly for good. She joins the ranks of celebrities endorsing weight loss programs— Mariah Carey, Jennifer Hudson, and Charles Barkley have all lost weight via food services, and participated in advertisements to showcase their transformation.

"I've come a long way. I haven't reached where I want to be. I'm a work in progress. I haven't reached my success. I know I will get there with Nutrisystem. I am happy with who I am and the person I am," said Jackson.