Celebrity Celebrity Family Celebrity Kids Jessica Simpson Shares Rare Back to School Photo with Kids Maxwell, Ace and Birdie: 'So Very Proud' "Keep on showin' up for yourselves with each step of the way through this new school year!” Simpson wrote of her three children By Gabrielle Rockson Gabrielle Rockson Gabrielle Rockson is a staff writer-reporter for PEOPLE. She joined PEOPLE in 2023 and covers entertainment and human interest stories. She's interviewed David Beckham, Zendaya, Timothée Chalamet and many others. Her previous work can be found in OK! Magazine, MyLondon, GRM Daily, and more. People Editorial Guidelines Published on September 5, 2024 05:19AM EDT Close Jessica Simpson with her three children: Ace, Birdie and Maxwell. Photo: Jessica Simpson/instagram Jessica Simpson is proud of her babies! On Wednesday, Sept. 4, the singer and fashion designer, 44, shared a carousel Instagram post of her three children as they headed back to school. In the snaps, daughter Maxwell Drew, 12, son Ace Knute, 11, and daughter Birdie Mae, 5, flashed beaming smiles as they stood by their proud mom. While Maxwell and Birdie matched in checkered blue skirts, Ace sported a red polo top and beige shorts. Both Maxwell and Birdie also wore their blonde locks down, with Birdie sporting red and navy bows to match her navy polo top and sneakers, while Maxwell wore a white polo top. Jessica Simpson and daughter Maxwell. Jessica Simpson/instagram Jessica Simpson Shares Sweet Selfie with Daughter: 'Me and My Birdie' Meanwhile, Simpson looked stylish in a lime green dress, cropped black waistcoat, leopard print boots and a pair of matching sunglasses. “Maxwell, Ace and Birdie y’all make your Mom beam with smiles and grace!” Simpson — who shares her children with husband Eric Johnson — wrote in the caption. “Keep on showin’ up for yourselves with each step of the way through this new school year!” The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now! Jessica Simpson Admits She's a 'Braggin' Mom' as She Celebrates Son Ace: 'Mama Loves You' She added, "I’m so very proud of y’all for individually shining your light so that in return others feel the glow. 🤍.” In the carousel’s following snaps, Simpson placed her hands on her hips as she and her kids displayed different poses. The mother of three and her younger two children were also snapped crossing their arms in sync before a solo shot of Maxwell was featured. Jessica Simpson with her three kids. Jessica Simpson/instagram A picture of Maxwell and Ace carrying their little sister then appeared before concluding with a photo of Ace and Birdie striking different poses. "Mamma ❤️," wrote Real Housewives of New Jersey star Melissa Gorga in the comments section, while reality TV star Nicole "Snooki" Polizzi added, "Gorgeous." Jessica Simpson and son Ace. Jessica Simpson/instagram Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Simpson’s proud mom moment comes after she and her two daughters took selfies together while watching Ace at a basketball game last month. "Cheerin’ for Ace with his sisters from the sidelines 🏀🏀🏀," her caption read.