17 Celebrity Kids Making Instagram Adorable

They grow up so fast! This saying seems to ring especially true for celebrity kids, who sprint through their childhoods in the spotlight. Just this year, we've been mesmerized by how much Ava Phillippe has taken after her parents, Reese Witherspoon and Ryan Phillippe, and how Brandon Lee is already a heartbreaker like Pamela Anderson and Tommy Lee. The surprises keep on coming as these famous kids join Instagram and give us a behind-the-scenes look at their worlds. Read on to learn about what they share on social media, then see celebrity children following in their parents' footsteps on the red carpet.