Britney Spears 'spices' up her look

Britney Spears has a new look.

A new old look.

She's a brunette again.

On Saturday, she tweeted a photo of herself in front of a mirror and holding a bottle of perfume, sporting dark hair.

"Spice up Valentine's Day by getting 'Naughty & Nice' (pun intended)," Spears wrote, showing off her hair makeover as she promoted two of her newest fragrances, Naughty Remix and Nice Remix.

The last time we saw Brit Brit as a brunette was almost exactly a year ago. Which hair color do you prefer?