#1 Mackenzie Rosman
Before: She played the adorable daughter on the family-friendly show 7th Heaven.
After: Ruthie's all grown up! In 2013, she showed the world what she's got in a spread for Maxim.
#2 Mary-Kate and Ashley Olsen
Before: They were the twins that shared the role of Michelle Tanner on the hit San Francisco sitcom, Full House.
After: The fashionista twins have created several clothing lines for companies like Walmart.
#3 Kel Mitchell
Before: He was the orange-soda loving half of the duo that was always ready to serve up a Good Burger.
After: He's still making rounds on Nickelodeon shows like Sam and Cat. He guest-starred in an episode as rapper Peezy B.
#4 Lindsay Lohan
Before: She was the cutest and cleverest redhead that managed to bring her parents back together in The Parent Trap revamp.
After: Nowadays, people can't keep track of how many times she's been in and out of prison.
#5 Hilary Duff
Before: Back in the day, she played Disney Channel's favorite klutzy middle schooler, Lizzie McGuire.
After: She's the hippest young mom around to former NHL player, Mike Comrie's baby. She's doing young motherhood right, so beat that Kimye.