Celebrity·Posted on Jan 21, 202133 People Who Changed A Butt Load Or A Butt Little Since 1999Time has been kind (for some of these people).by Matt StoperaBuzzFeed StaffLinkFacebookPinterestTwitterMail 1. Danielle Fishel in 1999: Danielle Fishel now: View this photo on Instagram 2. Ben Savage in 1999: Ben Savage now: View this photo on Instagram 3. Feeny in 1999: Feeny now: View this photo on Instagram 4. Justin Timberlake in 1999: Justin Timberlake now: 5. J.C. Chasez in 1999: J.C. Chasez now: 6. Joey Fatone in 1999: Joey Fatone now: 7. Lance Bass in 1999: Lance Bass now: 8. Chris Kirkpatrick in 1999: Chris Kirkpatrick now: View this photo on Instagram 9. NSYNC in 1999: NSYNC now: View this photo on Instagram 10. Frankie Muniz in 1999: Frankie Muniz now: View this photo on Instagram 11. Mario Lopez in 1999: Mario Lopez now: 12. Mark-Paul Gosselaar in 1999: Mark-Paul Gosselaar now: 13. Brandy in 1999: Brandy now: View this photo on Instagram 14. Monica in 1999: Monica now: View this photo on Instagram 15. Nick Lachey in 1999: Nick Lachey now: View this photo on Instagram 16. Jessica Simpson in 1999: Jessica Simpson now: View this photo on Instagram 17. Rachael Leigh Cook in 1999: Rachael Leigh Cook now: View this photo on Instagram 18. Reese Witherspoon in 1999: Reese Witherspoon now: View this photo on Instagram 19. Sarah Michelle Gellar in 1999: Sarah Michelle Gellar now: View this photo on Instagram 20. Freddie Prinze Jr. in 1999: Freddie Prinze Jr. now: View this photo on Instagram 21. Enrique Iglesias in 1999: Enrique Iglesias now: View this photo on Instagram 22. Ricky Martin in 1999: Ricky Martin now: View this photo on Instagram 23. Britney Spears in 1999: Britney Spears now: View this photo on Instagram 24. Madonna in 1999: Madonna now: View this photo on Instagram 25. Gwen Stefani in 1999: Gwen Stefani now: 26. Moby in 1999: Moby now: View this photo on Instagram 27. Lil' Kim in 1999: Lil' Kim now: View this photo on Instagram 28. Eminem in 1999: Eminem now: 29. Beyoncé in 1999: Beyoncé now: View this photo on Instagram 30. Jennifer Lopez in 1999: Jennifer Lopez now: View this photo on Instagram 31. Keanu Reeves in 1999: Keanu Reeves now: 32. Jennifer Aniston in 1999: Jennifer Aniston now: View this photo on Instagram 33. Paul Rudd in 1999: Paul Rudd now: