Demi Pulls a 케샤 

After first dying her hair pink back in January, the 21-year-old continued her hair evolution with a side shave.

"So…. This happened…… Oops," the singer Tweeted, also posting a photo of her shorn long pink locks next to clippers.

Adding in another Tweet, "IDGAF #NEONLIGHTSTOUR," IDGAF being short for "I don't give a f***."

In December, the "Heart Attack" singer announced she was exiting "The X Factor" after two seasons on the judging panel to focus on her music and her "Neon Lights" tour.

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