'X Factor' judge Demi Lovato debuts blue hair on 'Tonight Show'

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Say goodbye to Demi Lovato's blonde locks. The "X Factor" judge appeared on "The Tonight Show with Jay Leno" Wednesday (October 2) to perform her new single "Neon Lights," and she did it with very blue hair.

The new color comes one day after Lovato appeared on "Conan" with blonde hair. What brought about the change? Well, the new song is called "Neon Lights," maybe she needed the hair to match.

The singer has also announced that she's hitting the road for a tour in early 2014. The tour will support her latest album, "Demi."
Photo/Video credit: NBC