19 Astonishing Then Vs. Now GIFs Of '90s Heartthrobs

Watch your teenage dreams transform before your eyes.

Behold, many of your '90s crushes as they appeared in the '90s vs. how they look now. Most of the "after" pics are from 2013 or 2014 except where noted. Enjoy!

1. Jared Leto

Jim Smeal / WireImage / Ben Gabbe / Getty Images

2. Freddie Prinze Jr.

Brenda Chase/Online USA, Inc./Liaison Agency / Frazer Harrison / Getty Images

3. James van der Beek

ztams.com /Michael Buckner / Getty Images

4. Joshua Jackson

The LIFE Picture Collection / Getty Images / Michael Loccisano / Getty Images for Showtime

5. Leonardo DiCaprio

ztams.com / Eduardo Munoz Alvarez / Getty Images

6. Luke Perry

ztams.com / Alberto E. Rodriguez / Getty Images

7. Will Friedle

ABC / Vivien Killilea / Getty Images

FYI: Will's adult pic is from 2011.

8. Mario Lopez

ztams.com / Jason Merritt / Getty Images

9. Rider Strong

ABC / Tibrina Hobson / Getty Images

10. Ryan Phillippe

Brenda Chase / Theo Wargo / Getty Images

11. Usher

Darlene Hammond / Getty Images / Paras Griffin / Getty Images for ASCAP Rhythm & Soul Department

12. Zachery Ty Bryan

ztams.com / Alberto E. Rodriguez / Getty Images

13. Joey Lawrence

ABC / David Becker / Getty Images

14. Andrew Keegan

The LIFE Picture Collection / Getty Images / Robin Marchant / Getty Images

15. Mark-Paul Gosselaar

ztams.com /Jason Kempin / Getty Images

16. Devon Sawa

Ron Galella / WireImage / Kevin Winter / Getty Images

FYI: Devon's adult pic is from 2011.

17. Justin Timberlake

ztams.com / Jamie McCarthy / Getty Images

18. Will Smith

NBC / Charley Gallay / Getty Images for Malibu Red

19. Joseph Gordon-Levitt

NBC / Frazer Harrison / Getty Images