These celebrities have all thrown it back online. Check out their memorable photos now.
1. The Rock Throwback Photo
Greatest throwback photo ever? Look at this old school picture of Dwayne "The Rock" Johnson!
2. Justin Bieber and Selena Gomez Throwback Photo
Justin Bieber throws it back in this photo. It's a shot of him and Selena Gomez and his siblings from 2012.
3. Britney Spears Throwback Photo
A throwback pic of Britney Spears, as shared by Britney Spears herself. Now that is what we call a worthy Tweet.
4. Kandi Burruss Throwback Photo
Kandi Burruss says she has "no idea" when she snapped this photo of herself, Aaliyah and Foxy Brown.
5. Kevin Hart Throwback Photo
Talk about throwing it WAY back. Kevin Hart feeds his brother in this photo.
6. Beyonce Throwback Photo
It's Beyonce! Did you recognize the singer at first?
Wait! There's more Celebrity Throwback Photos: What's Changed?! Just click "Next" below: