Celebrity Throwback Photos: What's Changed?

Greatest throwback photo ever? Look at this old school picture of Dwayne "The Rock" Johnson!

Justin Bieber throws it back in this photo. It's a shot of him and Selena Gomez and his siblings from 2012.

A throwback pic of Britney Spears, as shared by Britney Spears herself. Now that is what we call a worthy Tweet.

Kandi Burruss says she has "no idea" when she snapped this photo of herself, Aaliyah and Foxy Brown.

Talk about throwing it WAY back. Kevin Hart feeds his brother in this photo.

It's Beyonce! Did you recognize the singer at first?

We're back in 1985 with Nicole Richie for this throwback photo. She's being held by her dad.

Gabrielle Union is off to her junior prom in this amazingly awesome throwback photo.

Rihanna posted this throwback photo in honor of her grandmother's birthday.

Ludacris and Lil Kim have been friends for a long time. This picture makes that clear.

As you can see here, Kim Kardashian and Kourtney Kardashian have always embraced the first letter of their names.

Teresa Giudice wasn't always a Real Housewife of New Jersey. She throws it way back in this photo.

Jessica Biel reminded folks of an unfortunate tan with this throwback pic.

Molly Sims went with an old driver's license for this throwback photo. She still looksk great!

Gisele Bundchen would go on to have sex with Tom Brady and become the highest-grossing super model on the planet.

What feud?!? Beyonce and Solange appear to be getting along very well in this throwback photo.

This is the kind of throwback photo Gwyneth Paltrow would use, isn't it?

Julianne Hough shared this picture of her 12-year-old self singing the Avril Lavigne' hit "Complicated."

Jessica Alba is throwing it way, way, way back for this cute photo.

Notorious BIG and Puff Daddy from back in the day. Look at that beeper.

WHOA! Connie Britton and Kirsten Gillibrand were roommates in college. This is the ultimate throwback photo.

Yes, Prince played on his high school basketball team. This may be the greatest throwback photo of all time.

Taylor Swift throws it WAY back in this adorable photo. Yup, that's her and her brother on the farm as kids.

Amazing Throwback Thursday Alert! Look at this picture shared by Hillary Clinton, which dates back to Halloween 1995.

Awww, look at Nick Jonas and Miley Cyrus in this adorable throwback photo. We love it!

This is amazing. This is the throwback photo Adele is using for the single art for the song "When We Were Young."

Amber Rose has thrown it way back to middle school. We love this photo! It cracks us up.

Might this be the greatest throwback photo of all-time? That's a little Kendall Jenner in Khloe's arms!

This is amazing. This is a photo of Snoop Dogg on his wedding day and we can't stop staring at it.