Brian Austin Green

Megan Fox showed off her recently dyed 'do while on a lunch date with her husband, Brian Austin Green, in LA yesterday. We first caught a glimpse of Megan's red hair earlier this month when she touched down at LAX with Brian and their son, Noah. She is sporting the new hair color for her role as April O'Neil in the upcoming Ninja Turtles project. The movie is being produced by Megan's Transformers director, Michael Bay, with whom she has buried the hatchet after a public falling-out between the pair several years ago. The picture is due to hit theaters in 2014.

Megan Fox showed off her new red hair when she arrived in LAX with her husband, Brian Austin Green, and son, Noah, on Friday. Her new fiery 'do is for her role in the upcoming Ninja Turtles live-action film, which is currently in the middle of shooting. Megan will reportedly play April O'Neil in the film, which is being produced by her Transformers director Michael Bay. Michael and Megan had a very public falling out several years ago after she referred to the director as Hitler in a magazine interview. She was fired from the hit franchise and replaced by Rosie Huntington-Whiteley in 2011's Transformers: Dark of the Moon. However, Megan's role in Michael's upcoming film may prove that the pair's relationship has been patched back up.

Brian Austin Green went for an NYC stroll with his son, Noah, yesterday. He took the 6-month-old, who wore a knitted monkey hat, out in SoHo and stopped at an Adidas store during the outing. Noah's already becoming quite the traveler, having visited Brazil with his parents last month. Brian and Megan Fox celebrated Carnival, but Noah skipped out on the festivities. The family has since been lying low, though Megan will soon get to work on Ninja Turtles with producer Michael Bay.

Megan Fox and Brian Austin Green shared a kiss while watching the parades in Brazil on Sunday. The couple are spending time in Rio de Janeiro for Carnival, and have already been busy taking in the festivities. They kicked off their trip with a visit to the Heliopolis Urbanization Project in São Paulo, and Megan later made a solo appearance for Brahma beer. Although Megan and Brian were able to get in some alone time as a couple, it has been a family-filled getaway. Megan and Brian debuted baby Noah Shannon Green while checking out the sights yesterday.

Megan and Brian aren't the only stars participating in the festivities of Carnival — Kim Kardashian and Kanye West linked up with Will Smith to visit tourist attractions around Brazil yesterday.

Megan Fox and Brian Austin Green brought their 4-month-old son Noah Green to Rio de Janeiro for Carnival, which kicked off yesterday. So far, Megan and Brian have already been busy with events. On Saturday, Megan and Brian visited the Heliopolis Urbanization Project in São Paulo, where they were treated to a performance of the martial art capoeira. Today, Megan was solo to promote Brahma beer at a question-and-answer session in Rio after she appeared in a commercial for the brand last month.

Megan and Brian aren't the only stars that traveled for the annual festivities since Kim Kardashian and Kanye West also made their way to South America. Kim and Kanye showed PDA on Friday before taking in the sights over the weekend.

Ben Affleck, George Clooney, and Anne Hathaway were having a great time mingling with their Hollywood peers at the 2013 Golden Globes on Sunday night. Ben and George posed for photos with Jon Hamm while Anne shared a moment with her Les Misérables costar — and fellow Globe winner — Hugh Jackman. Both Ben and George had love for their leading ladies. Ben shared a sweet kiss with wife Jennifer Garner, while George had a moment with both host Amy Poehler and his own girlfriend Stacy Keibler. The Silver Linings Playbook crew, Bradley Cooper, Jennifer Lawrence, and director David O. Russell, looked cozy at their table.

Click through to see these stars and many more in behind-the-scenes dinner snaps from the award show, and be sure to share your thoughts on all the Globes fashion moments with our red-carpet beauty and fashion polls.

Megan Fox and Brian Austin Green visited a Land Rover dealership in Encino, CA, on Friday. The couple walked around the lot looking at cars and even checked out the trunk of one silver SUV. While at the dealership, Megan clutched her phone, perhaps so she can keep up with her newly created Twitter account. Megan Fox joined Twitter last week after admitting that it was "against [her] better judgement." Despite her reluctance, Megan has gamely taken on the social networking site, posting photos of her life-size replica of R2D2 as well as cute family moments. She has also been interacting with her fellow Star Wars fans, asking them to identify a coaster with a picture of Boba Fett printed on the front. Megan has continued joking around with her followers after wrapping up a funny press tour for This Is 40, during which she laughed about giving birth to a "vampire baby."

Reese Witherspoon, in a Miu Miu dress, was in the spotlight today at the March of Dimes Celebration of Babies luncheon. She was being honored with the Grace Kelly Award for her commitment to healthy pregnancies and families — make sure to vote on your favorite family of 2012. Reese had plenty of support at the event, which was hosted by Nick Cannon, including new mom Elizabeth Banks and Hilary Duff and Mike Comrie. Megan Fox, who gave birth to son Noah in September, and her husband, Brian Austin Green, were inducted into the Stork Club for new celebrity parents and mingled with Molly Sims inside. It was the first time Reese and Brian were at the same event since Brian jokingly thanked Reese for taking attention away from Noah's birth with the announcement of her own son, Tennessee. Amanda Peet broke from her small-screen role on The Good Wife to attend, and Alyson Hannigan was on hand as well.

Reese got behind another good cause yesterday, when she posed at the Children's Defense Fund of California's annual Beat the Odds Awards. Both recent appearances came after a quick trip to NYC earlier this week.

Megan Fox and Brian Austin Green ran errands with their son Noah in LA today. Brian toted the baby's carrier and Megan followed closely behind as they headed to their car. Brian and Megan welcomed their new arrival in September, but news that Noah had been born didn't make the rounds until Megan announced it via Facebook in mid-October. Brian recently chalked up the slow-breaking news to the fact that Reese Witherspoon gave birth to her son Tennessee right around the same time, garnering most of the media attention.

Megan has been enjoying some time away from the limelight during her pregnancy, but she'll be back on the big screen next month when This Is 40 hits theaters. Megan joins a comedic cast including Leslie Mann and Paul Rudd in what's being billed as the "sort-of sequel" to Knocked Up. It will be her first film since she appeared in Friends With Kids last year.