Demi Lovato traded her raven locks for a chestnut brown shade. Photo: AP | CHRIS/bauergriffinonline.com

Out with the old and in with the new.

That's the motto of many post-breakup women who not only ditch their man (and all of his accompanying baggage), but also their current hairstyle in exchange for something different, dramatic and flirty, perhaps symbolizing their new-found freedom.

Just look at what Demi Lovato did this week after splitting from touring companion, Joe Jonas. The 17-year-old pop star went from dark, wavy locks to light, sleek strands overnight.

"Fixed some highlights + added more," she tweeted. "I have blonde in my hair!!! Ahhhhh!!!!!"

Even without her prince, Lovato -- who has been edging towards more of a rock-star-look all year -- appears to be living happily ever after. Before heading off to an "exotic location" for a week's vacation, the former Disney starlet added, "I love, love, love my new hair! It's so light!"

Like so many of us, Kate Gosselin, Jennifer Love Hewitt and Kim Kardashian all shed their style when they shed their man. And who can forget Britney's dramatic stunt post Justin?

We call it the "breakover".

Let's just hope Taylor Swift doesn't follow suit.

For more breakup styles, check out this celeb's goatee!