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Demi Lovato is teasing fans with a clip of her upcoming music video for "Neon Lights." 

On Monday, the singer reached 20 million followers on Twitter, and thanked fans by revealing still photos and a short teaser. 

The "Neon Lights" video will be released on Thursday, and has Demi posing in a skin-tight full-body cat suit under a downpour of rain.  Other shots capture her under water in bright neon face makeup. 

The singer has also been promoting her new book of inspirational quotes called Staying Strong: 365 Days A Year.  The self-help book hits shelves on Tuesday, and Demi stopped by "The View" and "Good Morning America" Monday to talk about her personal struggles and how positivity has helped her recover.