They grow up so quickly! Some of Tinseltown's tots -- including Suri Cruise, Bindi Irwin and Jaden and Willow Smith -- are growing up right before our eyes. See how they've changed over the years!
Ava Phillippe (Reese Witherspoon and Ryan Phillippe)
Once upon a time, Ava Phillippe and little brother Deacon were getting a lift from mom Reese Witherspoon and dad Ryan Phillippe -- but now, Ava is helping mom pick out Ocar dresses and helping with baby brother Tennessee. "She tells me what's cool, what doesn't look good, so it's fun," Reese said of her daughter's fashion sense.
Related: Stars and Their Lookalike Kids!