7 Celebs who dyed their hair after a breakup

Jan 15, 2012 at 5:35 p.m. ET

Scarlett Johansson famously went brown, then red after her breakup with Ryan Reynolds. Katy Perry, Rihanna and other celebrities brazenly hit the dye bottle when romance went south.

So what's hair dye got to do with relationship recovery? Maybe something. Maybe nothing at all. But it seems to happen when celebrities are back on the market. Though her marriage to Ryan Reynolds was brief, Scarlett Johansson hit all the classic hair colors on the relationship recovery trail.

Scarlett Johansson's changing hair colors

Katy Perry decided on blue for her post-divorce announcement appearance. And while her hair was blue, Katy definitely wasn't. According to all accounts, Katy was happy and looking ahead to the future shortly after news of her split from husband Russell Brand went viral.

Katy Perry's hair transformation

And when Nicki Minaj split with hype guru SB, she also split from her very, very black hair. (We don't need to prove what colors she's dyed her hair since, but we really, really wanted you to believe it was actually, at one time, truly black).

Celebrities seem to use hair color to shake things up on the outside when they're reassembling on the inside post breakup.

Rihanna went from black and buzzed to a lighter, curly hair look in 2010 after her apocalyptic split from Chris Brown in 2009. She kept that look -- though straightened it -- for her historical post breakup interview with Diane Sawyer.

Rihanna's hair color change

When Lily Allen split from her boyfriend Seb Chew she chose pink as her new recovery color.

Notebook honey Rachel McAdams went all pink with her breakup from Ryan Gosling. And while they reunited again a year later, her hair took a brief detour at brown before making it back to her own lighter shade. She has never looked better.

Rachel McAdams hair

And while Lady Gaga has a knack for hair color, she actually seemed to be mourning her breakup with boyfriend Luc Carl with a solid black hairdo.

Do you think it was on purpose?

Photos courtesy of Wenn