Lifestyle Style First Comes Love, Then Comes Makeover From Katy Perry getting in touch with her dark side to Ashton Kutcher's glam makeover, see how falling in love changed these stars' looks! By Katherine Kluznik Rentmeester Published on May 4, 2010 03:15 PM Share Tweet Pin Email Trending Videos 01 of 23 KATY PERRY Keith Mayhew/LMKMedia/JPI Polka-dots! Retro curls! Lots and lots of color! Katy was fun personified before her fiancé entered the scene, embodying her own edgy take on bubble-gum pop music. 02 of 23 KATY & RUSSELL Flynet It’s Katy – re-Branded! After teamed up with British comedian Russell Brand, she got down-and-dirty, matching her fiancé’s long hair, inch for shaggy inch, and at times trading her Technicolor wardrobe to mirror his somber layers. 03 of 23 ASHTON KUTCHER Peter Brooker/Rex USA Trucker hat? Check! Ironic T-shirt? Check! Suburban gangsta stance? Check! Before meeting his wife-to-be, launched his career with a look that was all Punk’d up. 04 of 23 ASHTON & DEMI Jason Merritt/Getty She has 15 years on him in age – and style. And when and became an item, he sprinted to catch up, trading a closet full of looks that only a frat boy could love for classic shapes and a monochromatic palette. 05 of 23 NICOLE KIDMAN Colin Knight/JPI What designer could ask for a better red-carpet model than ? Before she married , the star draped her slender frame in classic sequined dresses and kept her beauty high-glamour. 06 of 23 NICOLE & KEITH When the glamour girl met her country love, she traded Hollywood’s high-fashion style for softer silhouettes, favoring prints, frills and bows that reflect the southern sensibility of her new Nashville home. 07 of 23 CHRISTINA AGUILERA Gary Hershorn/Reuters/Landov Putting the XXX in X-tina, had mothers across America worried with her non-stop carousel of “reverse-cleavage” tops and nano-minis – before she finally met her match. 08 of 23 CHRISTINA & JORDAN Stefanie Keenan/Patrick McMullan/Sipa He might not be Hollywood’s most obvious fashion tastemaker, but music exec Jordan Bratman tamed Aguilera’s wild-child ways (at least offscreen!). Now she’s making high-impact statements, but with retro dresses and ’50s silhouettes. 09 of 23 JOEL MADDEN Gregorio Binuya/Retna As frontman of pop-punk powerhouse Good Charlotte, looked the part when he was free and single, rocking a rock star’s wardrobe of low-slung pants, tees and tattoos. 10 of 23 JOEL & NICOLE Fame His grungy attire didn’t survive long after meeting boho fashionista fiancée . The dappered-up singer is now equally at home commanding red-carpet tuxedos as he is a turntable. 11 of 23 KATIE HOLMES Jemal Countess/WireImage was already dipping a stiletto-clad toe into the fashion pool just months before meeting her husband-to-be – even heading to the BCBG Max Azria show during Fashion Week in 2005. 12 of 23 KATIE & TOM Matt Baron/BEImages Add new beau into the mix, and Katie quickly traded cute for couture, swapping her long hair and pretty frocks for a high-fashion blunt bob and a grown-up wardrobe. 13 of 23 EVAN RACHEL WOOD Evan Agostini/Getty Before she saw the world through Marilyn Manson’s “Heart-Shaped Glasses,” the former showed off simple elegance in soft silhouettes on the red carpet. 14 of 23 EVAN RACHEL & MARILYN Ramey When the actress fell for Manson, she went from girl-next-door to his true rock steady, debuting red lipstick, an all-black wardrobe and a complexion only a goth rocker could love. 15 of 23 HEIDI MONTAG Jeffrey Mayer/WireImage Before she became Mrs. Pratt, the once brought a breath of Colorado mountain air to the The Hills. 16 of 23 HEIDI & SPENCER David Aguilera/BuzzFoto/FilmMagic Ten plastic surgery procedures later, Heidi 2.0 emerged – blonder, bustier and more bodacious – all the better to keep pace with her equally blond and brash husband, Spencer Pratt, as Hollywood’s most fame-seeking couple. 17 of 23 BEN AFFLECK Arnaldo Magnani/Getty The former was known for a revolving door of high-profile romances – and an equally impressive wardrobe of high-end designer duds. 18 of 23 BEN & JENNIFER Fame Married nearly five years to , the now father-of-two (to daughters Violet, 4, and Seraphina, 1) traded in his GQ suits for track suits to keep up with his busy – and happy – life as a family man. 19 of 23 ASHLEE SIMPSON John Shearer/WireImage Before the former California blonde fell in love with her Fall Out Boy bassist, the was singing a different tune – about living in someone else’s “Shadow” (perhaps big sis Jessica’s)? 20 of 23 ASHLEE & PETE Jamie McCarthy/Getty When met husband , she didn’t just take his name, she also adopted his style. And for better or worse, the couple share and share alike – from flat-iron and guyliner to leather and more leather. 21 of 23 JENNIFER & MARC ANTHONY Peter Foley/Landov The wife and mother (to twins Max and Emme) re-tuned her style to incorporate sophisticated gowns and softer makeup that’s completely in sync with her new lifestyle and husband Marc Anthony’s understated look. 22 of 23 BRAD PITT Albert L. Ortega/WireImage Before sharing the spotlight with partner , the easily made the A-list grade in tailor-made suits and a sexy clean-cut crop. 23 of 23 BRAD & ANGELINA Goff/INF; Kevin Winter/Getty (inset) Now, the father of six isn’t afraid to let his hair – or scruff! – down, thanks to partner , whose loosened up the actor’s once buttoned-up wardrobe.