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    Ariana Grande, Keke Palmer, And 24 Other Former Nickelodeon Stars Who've Had Big Style Transformations

    Where did all the time go...

    1. Emma Roberts on her first red carpet in 2001:

    Emma smiling in camo capri pants and sleeveless T-shirt
    Steve Granitz / WireImage

    Nickelodeon show she starred in: Unfabulous

    Emma Roberts on her most recent red carpet in 2021:

    Emma in a short dress with three-quarter-length sleeves and square neckline
    Amy Sussman / Getty Images

    Emma Roberts then vs. now:

    Two photos side by side
    Steve Granitz / WireImage, Amy Sussman / Getty Images

    2. Keke Palmer on her first red carpet in 2005:

    Keke wearing a hair bow and a long, satiny dress with ruched bodice
    Albert L. Ortega / WireImage

    Nickelodeon show she starred in: True Jackson V.P.

    Keke Palmer on her most recent red carpet in 2022:

    Tasos Katopodis / Getty Images for Hoorae

    Keke Palmer then vs. now:

    Photos side by side
    Albert L. Ortega / WireImage, Tasos Katopodis / Getty Images for Hoorae

    3. Miranda Cosgrove on her first red carpet in 2004:

    Miranda in low-rise jeans and jacket
    Steve Granitz / WireImage

    Nickelodeon shows she starred in: Drake & Josh, iCarly

    Miranda Cosgrove on her most recent red carpet in 2022:

    Miranda in a short halter-top dress
    Matt Winkelmeyer / Getty Images for Nickelodeon

    Miranda Cosgrove then vs. now:

    Side-by-side photos
    Steve Granitz / WireImage, Matt Winkelmeyer / Getty Images for Nickelodeon

    4. Ariana Grande on her first red carpet in 2009:

    Gregg Deguire / FilmMagic

    Nickelodeon shows she starred in: Victorious, Sam & Cat

    Ariana Grande on her most recent red carpet in 2020:

    Amy Sussman / Getty Images

    Ariana Grande then vs. now:

    Side-by-sides
    Gregg Deguire / FilmMagic, Amy Sussman / Getty Images

    5. Elizabeth Gillies on her first red carpet in 2010:

    Elizabeth in leggings and sleeveless long top
    Jeffrey Mayer / WireImage

    Nickelodeon show she starred in: Victorious

    Elizabeth Gillies on her most recent red carpet in 2021:

    Bravo / NBCU Photo Bank via Getty Images

    Elizabeth Gillies then vs. now:

    Side-by-sides
    Jeffrey Mayer / WireImage, Bravo / NBCU Photo Bank via Getty Images

    6. Josh Peck on his first red carpet in 2004:

    Smiling Josh in a T-shirt
    Jeffrey Mayer / WireImage

    Nickelodeon shows he starred in: The Amanda Show, Drake and Josh

    Josh Peck on his most recent red carpet in 2021:

    Josh in a short-sleeved flower-pattern shirt
    Jeff Kravitz / FilmMagic

    Josh Peck then vs. now:

    Side-by-sides
    Jeffrey Mayer / WireImage, Jeff Kravitz / FilmMagic

    7. Kel Mitchell and Kenan Thompson's first red carpet in 1997:

    Kel in a hat and striped pant set and Kenan in a loose shirt
    Ron Galella / Ron Galella Collection via Getty Images

    Nickelodeon shows they starred in: All That, Kenan & Kel

    Kel Mitchell on his most recent red carpet in 2020:

    Smiling Kel in a hat and wearing jeans, a jean shirt, and a suede or corduroy jacket
    Arnold Turner / Getty Images for Netflix

    Kenan Thompson on his most recent red carpet in 2021:

    Smiling Kenan in a velvety-looking suit, no tie
    Amy Sussman / Getty Images

    Kel Mitchell and Kenan Thompson then vs. now:

    Three side-by-sides
    Ron Galella / Ron Galella Collection via Getty Images, Arnold Turner / Getty Images for Netflix, Amy Sussman / Getty Images

    8. Victoria Justice on her first red carpet in 2005:

    Smiling Victoria in a short-sleeved bright top and dangly necklace
    Frazer Harrison / Getty Images

    Nickelodeon shows she starred in: Zoey 101, Victorious

    Victoria Justice on her most recent red carpet in 2022:

    Victoria in a long-sleeved top with see-through sections
    Tommaso Boddi / WireImage

    Victoria Justice then vs. now:

    Side-by-sides
    Frazer Harrison / Getty Images, Tommaso Boddi / WireImage

    9. Alex and Nat Wolff's first red carpet in 2007:

    Alex and Nat embracing and wearing jeans and shirts
    Lester Cohen / WireImage

    Nickelodeon show they starred in: The Naked Brothers Band

    Alex Wolff on his most recent red carpet in 2022:

    Alex in a suit and tie
    Frederic J. Brown / AFP via Getty Images

    Nat Wolff on his most recent red carpet in 2022:

    Nat in a suit and tie
    Rodin Eckenroth / WireImage

    Alex and Nat Wolff then vs. now:

    Three side-by-sides
    Lester Cohen / WireImage, Frederic J. Brown / AFP via Getty Images, Rodin Eckenroth / WireImage

    10. Devon Werkheiser on his first red carpet in 2004:

    Smiling Devon in a checkered, short-sleeved shirt, loose pants, and sneakers
    Steve Granitz / WireImage

    Nickelodeon show he starred in: Ned's Declassified School Survival Guide

    Devon Werkheiser on his most recent red carpet in 2019:

    Devon with his hands in the pockets of his mid-thigh coat
    Jim Spellman / Getty Images

    Devon Werkheiser then vs. now:

    Side-by-sides
    Steve Granitz / WireImage, Jim Spellman / Getty Images

    11. Avan Jogia on his first red carpet in 2008:

    Smiling Avan in a top hat and suit and tie
    Michael Bezjian / WireImage

    Nickelodeon show he starred in: Victorious

    Avan Jogia on his most recent red carpet in 2020:

    Avan in a suit, no tie, and a goatee and mustache
    Unique Nicole / Getty Images

    Avan Jogia then vs. now:

    Side-by-sides
    Michael Bezjian / WireImage, Unique Nicole / Getty Images

    12. Jennette McCurdy on her first red carpet in 2008:

    Jennette in leggings and a short dress
    Patrick Mcmullan / Patrick McMullan via Getty Images

    Nickelodeon shows she starred in: iCarly, Sam & Cat

    Jennette McCurdy on her most recent red carpet in 2018:

    Jennette in a belted pantsuit
    Tara Ziemba / AFP via Getty Images

    Jennette McCurdy then vs. now:

    Two side-by-sides
    Patrick Mcmullan / Patrick McMullan via Getty Images, Tara Ziemba / AFP via Getty Images

    13. Nathan Kress on his first red carpet in 2009:

    Nathan in jeans and a shirt, tie, and open jacket
    Jeffrey Mayer / WireImage

    Nickelodeon show he starred in: iCarly

    Nathan Kress on his most recent red carpet in 2022:

    Smiling Nathan in a shirt and open jacket
    Jeff Kravitz / FilmMagic

    Nathan Kress then vs. now:

    Side-by-sides
    Jeffrey Mayer / WireImage, Jeff Kravitz / FilmMagic

    14. Daniella Monet on her first red carpet in 2004:

    Daniella in a spaghetti-strap mid-thigh dress with wrap
    Jim Spellman / WireImage

    Nickelodeon show she starred in: Victorious

    Daniella Monet on her most recent red carpet in 2019:

    Daniella in a short dress and long shirt and showing a baby bump
    Gregg Deguire / FilmMagic

    Daniella Monet then vs. now:

    Side-by-sides
    Jim Spellman / WireImage, Gregg Deguire / FilmMagic

    15. Paul Butcher on his first red carpet in 2006:

    Smiling Paul in jeans and a T-shirt
    Steve Granitz / WireImage

    Nickelodeon show he starred in: Zoey 101

    Paul Butcher on his most recent red carpet in 2019:

    Paul in straight pants and shirt
    Steve Granitz / WireImage

    Paul Butcher then vs. now:

    Side-by-sides
    Steve Granitz / WireImage

    16. Matt Bennett on his first red carpet in 2010:

    Matt with thick hair and glasses, wearing jeans, sneakers, and a short-sleeved shirt
    Jason Laveris / FilmMagic

    Nickelodeon show he starred in: Victorious

    Matt Bennett on his most recent red carpet in 2021:

    Smiling Matt in a jean jacket and shirt
    Alberto E. Rodriguez / Getty Images

    17. Matt Bennett then vs. now:

    Side-by-sides
    Jason Laveris / FilmMagic, Alberto E. Rodriguez / Getty Images

    18. Leon Thomas III on his first red carpet in 2007:

    Smiling Leon giving the peace sign and wearing jeans, a tie and shirt, and a jacket
    Jim Spellman / WireImage

    Nickelodeon show he starred in: Victorious

    Leon Thomas III on his most recent red carpet in 2020:

    Leon with sunglasses and wearing a jacket with bow tie
    David Crotty / Patrick McMullan via Getty Images

    Leon Thomas III then vs. now:

    Side-by-sides
    Jim Spellman / WireImage, David Crotty / Patrick McMullan via Getty Images

    19. Nick Cannon on his first red carpet in 2001:

    Nick in a hat, long-sleeved top, and jeans, holding up a peace sign
    Steve Granitz / WireImage

    Nickelodeon show he starred in: All That

    Nick Cannon on his most recent red carpet in 2021:

    Nick in a tie and long houndstooth jacket and matching pants
    John Lamparski / Getty Images

    Nick Cannon then vs. now:

    Side-by-sides
    Steve Granitz / WireImage, John Lamparski / Getty Images

    20. Larisa Oleynik on her first red carpet in 1996:

    Smiling Larisa in a short, short-sleeved dress with a flower pattern at the bottom and ankle boots
    Ron Galella / Ron Galella Collection via Getty Images

    Nickelodeon show she starred in: The Secret World of Alex Mack

    Larisa Oleynik on her most recent red carpet in 2019:

    Smiling Larisa in jeans, scoop-neck top, and long coat
    Tibrina Hobson / Getty Images

    Larisa Oleynik then vs. now:

    Side-by-sides
    Ron Galella / Ron Galella Collection via Getty Images, Tibrina Hobson / Getty Images

    21. Meagan Good on her first red carpet in 2002:

    Meagan in a sleeveless tank top, tight, asymmetrical-bottom skirt, and thigh-high boots
    Robert Mora / Getty Images

    Nickelodeon show she starred in: Cousin Skeeter

    Meagan Good on her most recent red carpet in 2022:

    Meagan in a jumpsuit and combat boots
    Amy Sussman / Getty Images for Deadline Hollywood

    Meagan Good then vs. now:

    Side-by-sides
    Robert Mora / Getty Images, Amy Sussman / Getty Images for Deadline Hollywood

    22. Robert Ri'chard on his first red carpet in 1999:

    Smiling Robert in a long jacket, open shirt, and loose pants
    Ron Galella / Ron Galella Collection via Getty Images

    Nickelodeon show he starred inCousin Skeeter

    Robert Ri'chard on his most recent red carpet in 2021:

    Robert in a shiny, patterned jacket, open shirt, and pants
    Jamie Mccarthy / Getty Images

    Robert Ri'chard then vs. now:

    Side-by-sides
    Ron Galella / Ron Galella Collection via Getty Images, Jamie Mccarthy / Getty Images

    23. Melissa Joan Hart's first red carpet in 1994:

    Jeff Kravitz / FilmMagic

    Nickelodeon show she starred in: Clarissa Explains It All

    Melissa Joan Hart's most recent red carpet in 2022:

    Melissa in a puffy-sleeved, shiny, deep-V-neck jumpsuit
    Steve Granitz / FilmMagic

    Melissa Joan Hart then vs. now:

    Side-by-sides
    Jeff Kravitz / FilmMagic, Steve Granitz / FilmMagic

    24. Christina Vidal on her first red carpet in 2001:

    Smiling Christina with camo pants and one-shoulder top
    Steve Granitz / WireImage

    Nickelodeon show she starred in: Taina

    Christina Vidal's most recent red carpet in 2020:

    Christina in long-sleeved, shiny wrap minidress
    Rodin Eckenroth / WireImage
    Side-by-sides
    Steve Granitz / WireImage, Rodin Eckenroth / WireImage

    25. Ciara Bravo on her first red carpet in 2009:

    Frazer Harrison / Getty Images

    Nickelodeon show she starred in: Big Time Rush

    Ciara Bravo on her most recent red carpet in 2022:

    Jon Kopaloff / Getty Images

    Ciara Bravo then vs. now:

    Side-by-sides
    Frazer Harrison / Getty Images, Jon Kopaloff / Getty Images

    26. And finally, Big Time Rush on their first red carpet in 2010:

    Four band members dressed casually in various vests, jackets, shirts, and ties
    Jeffrey Mayer / WireImage

    Nickelodeon show they starred in: Big Time Rush

    Big Time Rush on their most recent red carpet in 2022:

    Three smiling members, with one holding a photo of the fourth, dressed casually in long-sleeved sweaters, jackets, vests, or shirts
    Rich Polk / Getty Images for iHeartRadio

    Big Time Rush then vs. now:

    Side-by-sides
    Jeffrey Mayer / WireImage, Rich Polk / Getty Images for iHeartRadio