Catherine Zeta-Jones had plenty to celebrate this summer.
First, it was Dylan's milestone graduation from Brown University. And now, the proud mom is celebrating her son's 22nd birthday with a touching tribute on Instagram.
On Monday, the Chicago star gave her followers a glimpse of his growth over the years, starting with rare throwback photos from his childhood and ending with a more recent snap from his college graduation ceremony. She wrote, "Happy 22nd Birthday Dylan. Zero to 22! You are everything to me and everything is you. The joy you have brought to this world thus far, is immeasurable. I love you more than words can say."