Where has the time gone?! Catherine Zeta-Jones shared via Instagram over the weekend that her 17-year-old son, Dylan, attended prom — and we can't believe how grown up the teenage boy looks in the pics. Watch the video above to see!

"Prom Proud! Graduation around the corner! So proud of you Dylan, college bound! Love you so??," she captioned the pics. For the special occasion, Dylan sported a black tuxedo with a white shirt, black bowtie, and a white rose boutonnière. He looked so handsome!

Catherine and her husband, Michael Douglas — the two married in 2000 — previously welcomed Dylan in August of that same year. They are also parents to a 15-year-old daughter, Carys. Michael is additionally a dad to an older son named Cameron, 39, from his first marriage to Diandra Luker.

In a previous interview with Today, Catherine gushed about life with her two kids, whom she's been showing off in the public eye more and more recently. "These years have been so important in that you never get them back," she said. "I've got two great teenagers and I love them. I've had all this wonderful time and I'm so excited to see which way they're going to go."

It was also previously revealed that Catherine is grooming her daughter to enter the acting world. "Catherine is determined to turn her daughter into an A-list name in the modeling and acting worlds," an insider recently told Life & Style. "She's grooming Carys for the big time."

"Catherine picks out Carys' outfits and oversees her hair and makeup," the source added. "She's super hands-on. She plans to take on the official role of Carys' manager and turn her into the next big thing in Hollywood." We bet she picked out Dylan's outfit for prom, too. What a great mom!