Demi Lovato injures herself on a crystal before her appearance on Jimmy Kimmel Live!

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Lovato reveals their bleeding forehead as the audio continues the words

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"They're gonna know." As the audio suggested, "How are they gonna know?

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along with the hashtags, "#substance" and "#f***" hinting that they were set to perform their upcoming single

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Substance on the show. The song is scheduled to be out this Friday, per People.

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Previously, Lovato gave their fans a sneak peek at the song as they

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took to Instagram and posted the cover art of the track and attached to that was a clip

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of them lipsynching along the snippet being played as they wrote in the caption

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"SUBSTANCE July 15th. Pre-Save Now." Following their pre-release single will come out their eighth

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studio album HOLY FVCK which will launch on August 19. The single is a follow-up track to their album's first single

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