They say opposites attract, but in a celebrity partnership those opposites seem to melt away the longer the couple is together.
For example, when Nicole Kidman showed up at the SAG Awards in 2013 with her straightened blonde hair parted straight down the middle, it was clear she had, perhaps unconsciously, taken some style notes from husband Keith Urban. And the Beckhams double-blonde look definitely had heads turning.
Like many couples, the Urban-Kidmans and the Beckhams might be spending so much time together they are starting to morph into one another.
Take a look at other celebrity pairs who become have become dating dopplegangers throughout the years.
Nicole Kidman is looking more and more like husband Keith Urban.
Gwyneth Paltrow and Brad Pitt practically morphed into one another when they were an item.
Tom Cruise and Katie Holmes shared the same style early in their relationship.
In 2007 David and Victoria Beckham shared hairstyles.
Later that year they developed a shared taste for platinum blonde.
Hilary Swank and John Campisi were together for five years until 2012.
The resemblance is uncanny.
Miranda Kerr and Orlando Bloom have similar facial features.
Brad Piit and Angelina Jolie have been seen sporting similar hairstyles.
They started dying their hair the same colour years ago.
Young former flames Justin Bieber and Selena Gomez mirrored each others smiles.
Marilyn Manson and Dita Von Teese were clearly into the same look.
Keira Knightley and fiance James Righton look quite alike.
Lenny Kravitz and his wife Lisa Bonet have similar style.
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