Demi Lovato falls hard during pool party performance


 (2015 Getty Images)

Demi Lovato knows how to keep her cool.

The "Cool for the Summer" singer was celebrating her new single during a special performance in Los Angeles at KIIS FM's summer pool party on the roof of the WaterMarke Tower when she took a painful-looking spill.

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Demi -- who had performed on a small, wet stage in the middle of a pool (because that sounds safe) -- was about to jump into the pool with all her fans when she slipped on a puddle of water and fell, hard.

The singer didn't take it too seriously though, getting back up again and jumping into the pool anyway.

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In fact, Demi posted a video of the spill to Instagram, set to her song, with the tags, "#NOTCoolForTheSummer #F**kit"

Demi also to took Twitter to joke about the fall, writing, "Well... It's not a tour without busting ass!!!!!!"

A video posted by Demi Lovato (@ddlovato) on