Kim Kardashian debuted a brand new 'do in L.A. Monday.

The E! reality star's look was only temporary, as the 31-year-old donned a platinum blonde wig after visiting at a hair store with a pal.

PHOTOS: Kim Kardashian's hair evolution

Kardashian first uploaded pictures of herself wearing colorful wigs to her Instagram account Friday, but it seems as if she's seriously considering becoming a towhead; she even dyed her hair blonde in 2009.

"I miss my real blonde hair," the naturally brunette star tweeted Monday. "I might go lighter."

In January, Kardashian spent hours getting her hair highlighted by Rebecca Friedman, co-owner of the Goodform Salon in Hollywood.

"I swear I love changing my hair up," Kardashian told Us Weekly at the time. "It makes me feel like a new me!"

Tell Us: Do you prefer Kim Kardashian as a brunette or blonde?