Janet Jackson was looking fit and fabulous during her appearance on “The Tonight Show with Jay Leno.” The Nutrisystem spokeswoman sat down to discuss the weight loss program, hating her smile (“I felt like the Joker ’cause my smile is so broad”), why she wrote her self-help book True You, and what she thinks about her niece Paris pursuing a career in Hollywood.

The 45-year-old superstar also reminisced about crying on cue during her “Good Times” audition and shooting the iconic cover of her 1993 album janet. Plus, she and her trainer taught Jay some new exercise routines.

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How does Janet Jackson stay in shape? The pop icon is sharing her tips in a television commercial for Nutrisystem, the home delivery weight loss program. “I understand what it’s like to have weight issues. I’ve dealt with it all my life,” says the company’s newest spokeswoman, who is seen getting ready for her concert. “I’m on it and I’m already seeing results.”

Find out the key to Janet’s success.

Janet Jackson took to “GMA” to announce her new role as spokeswoman for Nutrisystem, the leading home delivery weight loss program. In a sit-down interview with Juju Chang, the pop icon spoke out about her weight loss struggles, the verdict in the trial of Dr. Conrad Murray, and her niece Paris’ Hollywood dreams.

The superstar singer revealed that her body image issues began with her role on “Good Times.” “I didn’t like it. We always find something wrong with us, somewhere,” said Janet, who found comfort in junk food. “I could really easily pick myself apart and that’s what I did.”

At the age of 45, Ms. Jackson is finally feeling confident about her body. “I’m able to look in the mirror. I couldn’t do that before,” she shared. “I’m very grateful to be able to do what I love most, what I really feel I was here to do, and that’s to help others.”

Janet also talked publicly for the first time since Dr. Conrad Murray was sentenced in the death of her brother, Michael Jackson. “It doesn’t bring my brother back—that would be the ultimate—but the best was done at that moment,” she said.

When asked what she thinks of her niece Paris landing a role in a Hollywood film, she sighed. “I’m happy for her because this is what she wants to do,” said Janet. “I told her you should really take this time to enjoy your youth to its fullest because you lose so much of your childhood in this industry.”

Janet, who has been performing around the world on her “Number Ones” tour, has had a year of highs and lows. “It’s been a great deal of happiness, it’s been some sadness, it’s been difficult at times.”

Janet Jackson was by her family’s side for the opening statements of the Michael Jackson manslaughter case today in Los Angeles. The mood was somber as the youngest Jackson, dressed demurely in black with sunglasses, walked hand in hand into the L.A. courtroom with her older brother Randy. Her parents, Katherine and Joe, and siblings were also in attendance for the start of the trial of Dr. Conrad Murray, who is charged with involuntary manslaughter in the June 2009 death of the pop legend.

Janet Jackson lives the glamorous life in Blackglama’s latest “What Becomes a Legend Most?” advertising campaign. The pop icon has been tapped to represent the luxury brand for a second year, joining past legends including Sophia Loren, Diana Ross, Audrey Hepburn, Lauren Bacall, Elizabeth Taylor, and Liza Minnelli. Miss Jackson poses nude with just a black mink covering her in the sexy, yet classy campaign shot by Rocco Laspata.

“It became clear in our discussions of who the Legend should be this year, that continuing the momentum with Janet made complete sense,” says Blackglama CEO Joe Morelli. “She embodies glamour, luxury, and sophistication, everything that Blackglama stands for.”

Go behind the scenes of Janet’s Blackglama shoot below.

[ET Online]

Twenty-one years after it was first released, Teairra Mari covers Janet Jackson’s classic “Come Back to Me” off her seminal album Rhythm Nation 1814. The lovesick singer begs for her lover to return on her breathy update, cooing, “Please come back to me. I miss you so much.” With her sexy remake, who could say no? Rap-Up.com has your first listen below.

Teairra Mari – “Come Back to Me”

The Mona Lisa wasn’t the only work of art on display at the Louvre last night. Janet Jackson made history by becoming the first female pop artist to perform under the I.M.Pei glass Pyramid at Paris’ famed museum. Sporting long curly locks, the music icon performed a medley of her greatest hits, including “What Have You Done for Me Lately,” ”Miss You Much,” “Rhythm Nation,” and “Nasty,” causing the glass walls to shake. She also rubbed elbows with royalty including Prince Albert II of Monaco and actress Diane Kruger at the “Liaisons au Louvre II” charity gala dinner.

A smiling Janet Jackson, who turned 45 earlier this week, was resplendent in a long wine-colored skirt and loosely tied green top at the 18th Annual amfAR Cinema Against AIDS Gala held during the Cannes Film Festival at Hôtel du Cap-Eden-Roc in Cap d’Antibes, France. The black-tie event, which included a cocktail reception, dinner, and live auction, attracted Gwen Stefani, Naomi Campbell, and a dapper Kanye West, who arrived on the arm of former French Vogue editor-in-chief Carine Roitfeld. Très chic!

Janet Jackson promoted her New York Times No. 1 bestseller True You: A Guide to Finding and Loving Yourself with an in-store appearance at Book Soup in West Hollywood on Friday (April 15). Dressed in dark denim, knee-high boots, and a short-sleeve top, the cropped-haired superstar signed copies of her self-help book and posed for photos.

The night before, the pop icon performed at the Gibson Amphitheatre to a packed house. Her brother Jermaine and mother Katherine were in the audience, receiving a standing ovation when they entered.

Janet will play another show in L.A. tonight and one on Saturday. Her “Number Ones: Up Close and Personal Tour” has been extended until the fall, with more North American dates to be announced.

Janet Jackson is about to make history. The iconic performer has been tapped as the first female pop artist to perform under the I.M.Pei glass Pyramid at Paris’ famed Louvre Museum, with plans to give a live show during the biannual fundraising event “Liaisons au Louvre.”

The global superstar shared her excitement to be chosen to entertain at the black-tie affair on June 14. “The Louvre and its stunning glass Pyramid are equaled only by the priceless treasures that are housed within its impressive walls,” she exclaimed. “It is an honor to be asked to participate in such an incredible evening at this historic location. ‘Liaisons au Louvre’ will be an unequaled event, raising much needed funds for this institution and the preservation of art that moves the soul.”

Henri Loyrette, Président-Directeur of the Louvre Museum, added, “Janet Jackson is one of the world’s greatest artistic treasures. Accordingly, we are profoundly honored, and believe it most fitting, that her performance in the Louvre Museum will be yet another masterpiece captured under our glorious glass Pyramid. I believe the evening with Janet Jackson will be a great ‘coup’ for our institution!”

Ms. Jackson is currently on the final U.S. dates of her “Number Ones: Up Close and Personal” tour, wrapping in Las Vegas on April 24.