Photo: Jessica Simpson Instagram

Jessica Simpson’s kids are heading back to the classroom.
On Wednesday, the singer, 42, shared a sweet photo onInstagramof her older two kids, daughterMaxwell Drew, 10, and sonAce Knute, 9, on their first day of school.
In the heartwarming picture, which is missing Simpson and husbandEric Johnson’s younger daughterBirdie Mae, 3, Maxwell wraps her arm around her younger brother as the siblings pose in the driveway, showing off their first day of school outfits.
“These two had an amazing first day of school! I’m so proud! Heart is full. Growin' up and ownin' it. Happy kiddos,” Simpson captioned the cute shot.
Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
Jessica Simpson Collection

Maxwell was a major fashionista in the promotional photos as she showed off the rose gold multi skates that were covered in fun sequins. She paired them with white pants and an oversize Johnny Cash concert t-shirt and wore her long blonde hair in pigtail French braids.
In April the “Irresistible” singertold PEOPLEabout some of the lessons she’s learned from Maxwell. “My oldest daughter, who’s nine; she’s about to be 10; she teaches me a lot aboutself-love, to be honest,” she said. “She is so cute and so adorable and so confident and just owns it.”
She noted that her daughter is “one of those girls that’s going to be a trendsetter, a leader and manifest everything.”
source: people.com