Two of a Kind: Matchy-Matchy Celebrity Couples

If these past and present celebrity couples are any indication, people really do start to look alike when they're dating — at least when it comes to coordinating outfits. Kim Kardashian and Kanye West regularly make us do a double take when they wear complementary colors, and when Justin Timberlake and Jessica Biel stepped out in the same suited-up look, we couldn't help but think of another time JT matched his other half. Who could forget when he and Britney Spears were a denim-on-denim duo? Other repeat offenders include Jennifer Aniston and Brad Pitt, who coordinated not just together, but also when they dated other people — like the day Brad's hairstyle closely resembled then-girlfriend Gwyneth Paltrow's. Look back at some of the most memorable matching moments from celebrity couples, then check out famous duos you forgot were married.

01
The Duke and Duchess of Cambridge
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The Duke and Duchess of Cambridge

Prince William and his wife, Catherine, sported matching purple sweaters with exposed collars while spending time at the queen's Scottish residence in 2011.

02
Justin Timberlake and Britney Spears
Getty | Jeffrey Mayer

Justin Timberlake and Britney Spears

At the 2001 AMAs, Britney Spears and Justin Timberlake went all-out denim. Hat, purse, blazer — everything.

03
Ryan Phillippe and Reese Witherspoon
Getty | D. Kambouris

Ryan Phillippe and Reese Witherspoon

At a Southampton, NY, Legally Blonde screening in 2001, Reese Witherspoon and Ryan Phillippe sported coordinating stripes.

04
Brad Pitt and Jennifer Aniston
Getty | SGranitz

Brad Pitt and Jennifer Aniston

Jennifer Aniston and Brad Pitt went for a tan monochrome look for the LA premiere of The Mexican in 2001.

05
Jay Z and Beyoncé Knowles
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Jay Z and Beyoncé Knowles

At the 2004 MTV VMAs, Jay Z and Beyoncé Knowles glammed it up in gold.

06
Ryan Reynolds and Alanis Morissette
Getty | KMazur

Ryan Reynolds and Alanis Morissette

For the 2003 MTV Movie Awards, Ryan Reynolds and Alanis Morissette wore leather on top with similar necklaces.

07
Justin Timberlake and Jessica Biel
Getty | Steven Lawton

Justin Timberlake and Jessica Biel

For the Las Vegas premiere of Runner, Runner in September 2013, Justin Timberlake and his wife, Jessica Biel, both suited up.

08
Brad Pitt and Gwyneth Paltrow
Getty | Kevin.Mazur

Brad Pitt and Gwyneth Paltrow

Brad Pitt and Gwyneth Paltrow donned dark coats — and the same hairstyle — during the LA premiere of The Devil's Own in 1997.

09
Tom Cruise and Katie Holmes
Getty | Francois Durand

Tom Cruise and Katie Holmes

In June 2005, Tom Cruise and Katie Holmes were in sync, rocking black jackets, shades, and jeans during a trip to Paris.

10
David Arquette and Courteney Cox
Getty | J. Merritt

David Arquette and Courteney Cox

For the LA premiere of Layer Cake in 2005, Courteney Cox and David Arquette wore matching white pants with striped tops.

11
Justin Theroux and Jennifer Aniston
Getty | James Devaney

Justin Theroux and Jennifer Aniston

Lace-ups, jeans, leather jackets, aviators? Check! Justin Theroux and Jennifer Aniston were right in step while out in NYC in September 2011.

12
Brad Pitt and Angelina Jolie
Getty | AFP

Brad Pitt and Angelina Jolie

Wearing ponytails with black-on-black outfits, Brad Pitt and Angelina Jolie were well coordinated for the Paris premiere of World War Z in June 2013.

13
Diddy and Jennifer Lopez
Getty | Jeff Kravitz

Diddy and Jennifer Lopez

For the MTV Music Awards in 1999, Jennifer Lopez and her then-boyfriend Diddy stuck to a similar style: shiny on top, leather on bottom.

14
Kanye West and Kim Kardashian
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Kanye West and Kim Kardashian

Sporting distressed jeans, white t-shirts, and long back overcoats, Kanye West and Kim Kardashian were perfectly in step while out and about in NYC.