ariana grande

From Nickelodeon stars to YouTube sensations — these former kid actors and child stars are entering their 30s this year!

It's no surprise Jennifer Aniston's hair — a.k.a. "The Rachel" — made the list.

Apparently, Lady Gaga even liked one of the videos.

She’s staying in her own “little bubble” for now.

From Gwen Stefani to Miley Cyrus and John Mayer, these pop stars have written breakup songs about other famous people.

Did your favorite make the list?

He's just like us.

Would you name your baby after your fave pop star?

The social media star has built an online presence cosplaying as Ariana.

She detailed being photographed in a bikini during a wardrobe fitting when she was a child.

Taylor Swift once sang about her crush on Owl City.

Ariana Grande, Cher and Reese Witherspoon are just a few stars who spoke out.