Demi Lovato_launch
Demi Lovato
is turning up the heat!

“The X Factor” judge shared some steamy snapshots on Twitter on Sunday, giving fans a sneak peek of her upcoming video for “Neon Lights.”

She posted the pics to celebrate her 20 million followers on the social networking site.

“"WOW!!!!!! Just passed the 20 MILLION follower mark,” she tweeted. “Unbelievable. I love my Lovatic family.. Thank you guys!!!!"

Demi Lovato-inset
In one shot, Lovato is seen lying on the ground as rain pours down onto her, showing off her rockin’ bod! Other pics show the brunette beauty covered head-to-toe in neon paint, even sporting glow-in-the-dark nails.

Demi Lovato - inset 2
In an interview on “Good Morning America” on Monday, the singer opened up about another project, her new book, "Staying Strong," out Tuesday.

"A lot of times my fans asked me, 'You know you helped me get into recovery, or because of you, I went into treatment. You saved my life.' They're incredibly sweet things that I'm very, very grateful for, but the question a lot of people have for me is 'How do you continue to stay strong?'"

Demi reveals the answer in the book, which also includes an entire year's worth of quotes and "morning mediations."

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