Catherine Zeta-Jones' Daughter, 21, Looks Just Like Her in Throwback Dress

Catherine Zeta-Jones' daughter channeled her mom on her 21st birthday — right down to her throwback fit.

Carys Zeta Douglas, who is the youngest child of Michael Douglas, 79, and Zeta-Jones, 54, shared a series of photos from her milestone birthday via Instagram on Monday, April 22. In the snaps, Carys wore the same floral slip dress her mom rocked at the 1999 MTV Movie Awards (Zeta-Jones was 29 at the time.)

"The most perfect 21st I could ask for ! 🌸," Carys captioned the Instagram carousel, which included photos with her friends and a shot of her blowing out the candles on a birthday cake. In one photo, she posed in the pink silk frock, which featured floral detailing on the bust. As she looked off to the side, hands on her hips, Carys looked undoubtedly like the Chicago star.

"You deserve it sweetheart ❤️," Zeta-Jones commented on her daughter's photos.

Michael and Zeta-Jones tied the knot in 2000, welcoming son Dylan that same year and Carys three years later. (The Wall Street star is also father of Cameron Douglas, whom he shares with first wife Diandra Luker.)

The actor wished his daughter a happy birthday in his own Instagram post on Saturday, April 20, sharing a sweet image of him looking on proudly as Carys stunned on the red carpet.

"Happy 21 my darling Carys! You bring me and the world such happiness @carys.douglas ❤️ Dad," Michael penned.

"I love you so much Dadda!" Carys commented in response. "Thank you for your being the best dad in the world ❤️."

Zeta-Jones also shared her love for their daughter in the comments.

"Happy Birthday to you Carys. I love you. ❤️," she gushed while echoing her husband's sentiment: "So true. Everything is better because of you. ♥️."