Brittany Aldean insists this new photo she posted on Instagram is about her hair, but her hands tell the truth. Superstar Jason Aldean's wife is expecting the couple's second child together, and right now, it's all about the bump!

The update, shared Sept. 24, shows her fresh locks and a sweet expectant belly, which she's cradling in her hands. Her fresh, blonde locks accentuate a stud-embellished tee and tortoise-shell Celine sunglasses. But her best accessory is definitely the burgeoning bump.

Jason Aldean Is a Hands-On Dad Even Before the Baby Is Born!

Aldean and Brittany Williams (Aldean's real last name) shared a gender reveal video last month that informed the world they're having a baby girl. She'll be the singer's third daughter, as he's raising Keeley and Kendyl from his previous marriage.

The couple haven't revealed baby's due date. Their son, Memphis, turns one year old in December.

Brittany, Jason and Memphis have been on the west coast while Dad has been playing shows in San Diego, Las Vegas, and San Bernadino. Aldean's High Noon Neon Tour continues its California run with shows in Wheatland, Mountain View and Irvine before the family makes their way back home for the singer's annual Concert for a Cure, which will take place in Nashville this year.

See Pics of Jason and Brittany Aldean's Fairytale Mansion — It's for Sale: