Looks like Jessica Simpson is back hard to work as a celebrity spokesperson for Weight Watchers. The 33-year-old mother of two showed off her slimmed-down figure in a photo she posted on Twitter yesterday, in which she wore skinny jeans, a white button-down and cowboy boots. "Couldn't stop smiling on set for my new @weightwatchers campaign today! #happy," Simpson wrote.


In 2012, the "Fashion Star" judge inked a lucrative deal with the popular weight management brand while still pregnant with her first child for a reported $4 million. Simpson then lost a reported 40 pounds before announcing a surprise pregnancy just seven months later -- and abruptly ending her stint with Weight Watchers.


In August, Weight Watchers welcomed Simpson back as a brand spokesperson, releasing a statement that said: "We were thrilled to welcome Jessica back on the Weight Watchers program in August. With a toddler on the run and an infant to look after, we know she needs a plan that’s simple and fits into her life along with the support that’s so important to moms with young children."




Also on HuffPost:




Loading Slideshow...



  • Celebrity Photos: November 2013


    Selena Gomez attended the Flaunt Magazine En Garde Issue launch party held at Hakkasan in Beverly Hills, Calif., on Nov. 7.




  • Celebrity Photos: November 2013


    Ben Affleck and Jennifer Garner stopped by Starbucks before heading to pick up their daughter Violet from school in Santa Monica, Calif., on Nov. 7.




  • Celebrity Photos: November 2013


    Natalie Portman was seen leaving the "Good Morning America" studios in NYC wearing bright pink on Nov. 7.




  • Celebrity Photos: November 2013


    Ariana Grande arrived at the BBC Radio One studio in London, England on Nov. 7.




  • Celebrity Photos: November 2013


    Jennifer Lawrence (and Jennifer Lawrence's new pixie cut) answered fan questions on Tumblr Chat during a Q&A session at Yahoo! headquarters on Nov. 6 in Sunnyvale, Calif.




  • Celebrity Photos: November 2013


    The adorable cast of "Girl Meets World," Ben Savage, Danielle Fishel, Rowan Blanchard and August Maturo, posed for wonderful photo booth photos on Nov. 6.




  • Celebrity Photos: November 2013


    Gisele Bundchen attended the 2013 WSJ Magazine's "Innovator Of The Year" Awards at the Museum of Modern Art in NYC, Nov. 6.




  • Celebrity Photos: November 2013


    Jodie Foster was seen leaving Matsuhisa restaurant in Beverly Hills on Nov. 6.




  • Celebrity Photos: November 2013


    Newly single (and still stunning) Miranda Kerr jetted out of LAX on Nov. 6.




  • Celebrity Photos: November 2013


    Charlie Day got goofy on the set of "Horrible Bosses 2" in Los Angeles, Calif. on Nov. 6.




  • Celebrity Photos: November 2013


    Rebecca Romijn and husband Jerry O'Connell celebrated her 41st birthday with dinner at Hakkasan restaurant on Nov. 6.




  • Celebrity Photos: November 2013


    Miranda Lambert rocked a little black dress at the 61st annual BMI Country awards on Nov. 5 in Nashville, Tennessee.




  • Celebrity Photos: November 2013


    Jessica Biel stunned in white and gold at the Museum of Modern Art 2013 Film benefit: A Tribute To Tilda Swinton on Nov. 5 in NYC.




  • Celebrity Photos: November 2013


    Jennifer Garner looked breathtaking in all white at a Max Mara red carpet event in Tokyo on Nov. 5.




  • Celebrity Photos: November 2013


    <em>That's</em> how she stays in shape! Eva Longoria spotted on a morning jog in the Hollywood Hills on Nov. 5.




  • Celebrity Photos: November 2013


    Kate Upton struck a pose during Melbourne Cup Day at Flemington Racecourse on Nov. 5 in Melbourne, Australia.




  • Celebrity Photos: November 2013


    Blake Lively texted on her pink Moto X while hanging with her dog Baxter in Los Angeles, Calif. on Nov 5.




  • Celebrity Photos: November 2013


    Jennifer Lawrence touched down at LAX Nov. 4, less than three weeks before "Hunger Games: Catching Fire" opens in theaters.




  • Celebrity Photos: November 2013


    Pierce Brosnan and Salma Hayek filmed a romantic scene for "How To Make Love Like An Englishman" on the beach in Malibu, California on Nov. 4.




  • Celebrity Photos: November 2013


    Whoa! Jaimie Alexander attended the premiere of Marvel's "Thor: The Dark World" on Nov. 4 in Hollywood in quite the revealing number.




  • Celebrity Photos: November 2013


    Paris Hilton touched down at LAX on Nov. 4 in stylish leather pants.




  • Celebrity Photos: November 2013


    Michelle Trachtenberg, in a gorgeous green gown, and Will Rothhaar attended the "Killing Kennedy" Los Angeles premiere on Nov. 4.




  • Celebrity Photos: November 2013


    Reese Witherspoon had lunch at The Ivy in Santa Monica, Calif., on Nov. 3.




  • Celebrity Photos: November 2013


    Taylor Swift attended the BBC Radio 1's Teen Awards at the Wembley Arena in London, England on Nov. 3.




  • Celebrity Photos: November 2013


    Pregnant Gwen Stefani took her sons to Racer's Edge Indoor Karting in Los Angeles, Calif., on Nov. 2.




  • Celebrity Photos: November 2013


    Lana Del Rey and Barrie James O'Neill attended NYLON magazine's party at the Sunset Marquis Hotel in Hollywood on Nov. 1.




  • Celebrity Photos: November 2013


    Hilary Duff was spotted grabbing pre-workout coffee before heading to the gym in Los Angeles on Nov. 1.




  • Celebrity Photos: November 2013


    Justin Bieber waved to his fans from the balcony of Copacabana Palace in Rio de Janeiro on Nov. 1.




  • Celebrity Photos: October 2013


    Zoe Saldana and husband Marco Perego looked totally in love walking around Los Angeles, Calif. on October 31.




  • Celebrity Photos: October 2013


    Kelly Osbourne embraced the dark side (and posed with her father, the Prince of Darkness) for Bootsy Bellows' Halloween party on October 31 in West Hollywood.




  • Celebrity Photos: October 2013


    Heidi Klum outdid herself with this old woman costume for her annual Halloween party, October 31 in NYC.




  • Celebrity Photos: October 2013


    Carmen Electra chose sexy for Bootsy Bellows' Halloween party on October 31 in West Hollywood.




  • Celebrity Photos: October 31


    Nicole Scherzinger dressed as Catwoman for Jonathan Ross's Annual Halloween party on October 31 in London, England.




  • Celebrity Photos: October 2013


    Matt Lauer dressed up as CJ, Pamela Anderson's character on "Baywatch," for the "Today" show Halloween special, Oct. 31.




  • Celebrity Photos: October 2013


    Sigourney Weaver attended the American Ballet Theatre Opening Night Fall Gala at Lincoln Center, NYC, on October 30.




  • Celebrity Photos: October 2013


    Bethenny Frankel, dolled up in pink, threw a princess themed Halloween party for her daughter and her friends on October 30 in New York City.




  • Celebrity Photos: October 2013


    Nicky Hilton wore a stunning blue floor-length gown to the American Ballet Theatre Opening Night Fall Gala at the David Koch Theatre in NYC, on Oct. 30.




  • Celebrity Photos: October 2013


    Maria Menounos looked gorgeous in white at the Oceana’s Partners Awards Gala 2013 held at the Beverly Wilshire Hotel in Beverly Hills.




  • Celebrity Photos: October 2013


    Blake Lively was seen leaving her hotel in Paris in mismatched prints on October 30, after being announced the newest face of L'Oreal.




  • Celebrity Photos: October 2013


    Lady Gaga spotted leaving her hotel dressed head to toe in black, complete with an oversized hat and mask on October 30 in London, England.




  • Celebrity Photos: October 2013


    Nicole Richie stunned in an an all-white ensemble at Chloé's first Los Angeles Fashion Show on October 29, after which she received the Chloé signature fragrance.




  • Celebrity Photos: October 2013


    Joe Jonas and girlfriend Blanda Eggenschwiler went for a walk through the East Village in NYC after grabbing lunch on October 29, amid reports the Jonas Brothers have broken up.




  • Celebrity Photos: October 2013


    Liam Hemsworth arrived on a flight at LAX Airport on Oct. 28 in Los Angeles, Calif.




  • Celebrity Photos: October 2013


    Melissa Joan Hart was seen out and about in New York City on Oct. 29.




  • Celebrity Photos: October 2013


    Amanda Seyfried and Justin Long joined forces at the Patron-sponsored LAByrinth Theater Company Celebrity Charades Benefit on Oct. 28 in NYC.




  • Celebrity Photos: October 2013


    Hailee Steinfeld attended the "Enders Game" premiere held at the TCL Chinese Theatre in Hollywood, Calif., on Oct. 28.




  • Celebrity Photos: October 2013


    Kate Bosworth and her husband Michael Polish made the media rounds to promote their new film on Oct. 28 in New York City.




  • Celebrity Photos: October 2013


    Tom Hiddleston, Natalie Portman and Chris Hemsworth attended the "Thor: The Dark World" Germany premiere at CineStar on Oct. 27 in Berlin, Germany.




  • Celebrity Photos: October 2013


    Anne Hathaway got into the Halloween spirit as she decorated her house with spider webs and a ghost on Oct. 27 in Los Angeles, Calif.




  • Celebrity Photos: October 2013


    Angelina Jolie took her kids to pick up Halloween supplies in Australia on Oct. 26.




  • Celebrity Photos: October 2013


    Michelle Williams attended the 2013 Whitney Gala & Studio Party in New York City, New York on Oct. 23.