1. Taylor Swift's 1989 photo.

2. Kim Kardashian and Nicole Richie were once friends.

3. January Jones:

4. Justin Timberlake had the power of Greyskull once.

5. Mick Jagger, Barbra Streissand, Michael Douglas, Meryl Streep, Jerry Hall in one picture.

6. Paris Hilton used to hang out with Kris Jenner.

7. Ewan McGregor looked like an awkward child.

8. Brooke Shields with Lucille Bell.

9. Madonna and Michael Jackson.

10. Victoria and David when they got married.

11. When Gwen Stefani met Gavin Rosdale.

12. Miley Cyrus tweeted a pic of her dad and her little sister, Noah.

13. Tyra Banks, back in the 90s.

14. Katy Perry predicted she'd be a pop star back then.

15. Aziz Ansari. Cute kid!

16. Laura Prepon:

17. Cindy Crawford all glammed up.

18. Tiffani Thiessen's hair looks out of control.

19. Beyonce, Kelly and Aaliyah hanging out.

20. Ricky Martin was a handsome kid even back then.

21. This is Beyonce.

22. Chris Pratt's first headshot.

23. The Rock was a lesbian looking guy back then.

24. Tom Brady, before he scored Gisele.

25. The reason why Jeremy Renner was not famous until Hurt Locker.