1.
Nelly then:
Frederick M. Brown / Getty Images
Nelly now:
Greg Doherty / Getty Images
2.
Mandy Moore then:
Steve Granitz / WireImage / Getty Images
Mandy Moore now:
Steve Granitz / WireImage / Getty Images
Ashanti now:
Noam Galai / Getty Images for MTV/ViacomCBS
Jesse Bradford now:
Michael Tullberg / Getty Images
5.
Fred Durst then:
Steve Granitz / WireImage / Getty Images
7.
Johnny Knoxville then:
Steve Granitz / WireImage
Johnny Knoxville now:
Randy Holmes / ABC via Getty Images
8.
Kelly Clarkson then:
Mark Mainz / Getty Images
Kelly Clarkson now:
Nbc / NBCU Photo Bank via Getty Images
Frankie Muniz now:
Eric Mccandless / Disney General Entertainment Content via Getty Images
10.
Craig David then:
Scott Gries / Getty Images
11.
Vanessa Carlton then:
Anthony Harvey – Pa Images / PA Images via Getty Images
12.
Seann William Scott then:
Robert Mora / Getty Images
Seann William Scott now:
Paul Archuleta / Getty Images
13.
Alexis Bledel then:
Jean-paul Aussenard / WireImage / Getty Images
Alexis Bledel now:
Steve Granitz / WireImage / Getty Images
14.
Tom Welling then:
Jeffrey Mayer / WireImage / Getty Images
Tom Welling now:
Michael Bezjian / Getty Images
15.
Jennifer Love Hewitt then:
L. Cohen / WireImage / Getty Images
Jennifer Love Hewitt now:
Chelsea Guglielmino / WireImage / Getty Images
16.
Mario then:
Ray Mickshaw / WireImage / Getty Images
17.
Eminem then:
Vinnie Zuffante / Getty Images
Eminem now:
Kurt Krieger – Corbis / Corbis via Getty Images
18.
Chad Michael Murray then:
Jean-paul Aussenard / WireImage / Getty Images
Chad Michael Murray now:
Paul Archuleta / Getty Images
19.
Avril Lavigne then:
Scott Gries / Getty Images
Avril Lavigne now:
Michael Kovac / Getty Images for Variety
20.
Jessica Alba then:
Steve Granitz / WireImage / Getty Images
Jessica Alba now:
Steve Granitz / WireImage / Getty Images
21.
Cam’ron then:
Evan Agostini / Getty Images
22.
Nicole Richie then:
Donato Sardella / WireImage / Getty Images
Nicole Richie now:
Emma Mcintyre / Getty Images
23.
Hilary Duff then:
Jon Kopaloff / WireImage / Getty Images
Hilary Duff now:
Steve Granitz / WireImage / Getty Images
24.
Gwen Stefani then:
Mark Mainz / Getty Images
Gwen Stefani now:
Paul Archuleta / Getty Images
25.
Lindsay Lohan then:
Frederick M. Brown / Getty Images
Lindsay Lohan now:
James Gourley / Getty Images
26.
Missy Elliot then:
Scott Gries / Getty Images
Missy Elliot now:
Noam Galai / Getty Images
27.
Enrique Iglesias then:
Anthony Harvey – Pa Images / PA Images via Getty Images
Enrique Iglesias now:
Kevin Winter / Getty Images
28.
Michelle Trachtenberg then:
Steve Granitz / WireImage / Getty Images
Michelle Trachtenberg now:
Jemal Countess / Getty Images
29.
Kelly Osbourne then:
Frederick M. Brown / Getty Images
Kelly Osbourne now:
Jamie Mccarthy / Getty Images for EJAF
30.
Chris Klein then:
Gregg Deguire / WireImage
Chris Klein now:
Shirlaine Forrest / WireImage
31.
Kristin Kreuk then:
Jim Spellman / WireImage / Getty Images
Kristin Kreuk now:
Isaiah Trickey / FilmMagic
32.
Ashton Kutcher then:
Steve Granitz / WireImage / Getty Images
Ashton Kutcher now:
Matt Winkelmeyer / Getty Images
33.
Wilmer Valderrama then:
Jim Spellman / WireImage / Getty Images
Wilmer Valderrama now:
Michael Tullberg / Getty Images
34.
Steve-O then:
Theo Wargo / WireImage / Getty Images
Steve-O now:
Araya Doheny / Getty Images
Source: https://www.buzzfeed.com/lyapalater/the-most-popular-celebrities-from-2002-then-and-now