Demi Lovato announces new song 'Substance' - Good Morning America

Demi Lovato's new song drops July 15. Their eigth studio album will follow not long after, on Aug. 19.

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Demi Lovato announces new song 'Substance' - Good Morning America

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Demi Lovato releases new rock album 'Revamped' - Good Morning America

Demi Lovato announces new song 'Substance' - Good Morning America

Demi Lovato releases new song, 'Substance,' reveals track list for upcoming album - Good Morning America

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Demi Lovato announces new song 'Substance' - Good Morning America

Demi Lovato performs three songs on Good Morning America

Demi Lovato announces new song 'Substance' - Good Morning America

Demi Lovato Delivers Riotous Performance Of 'Substance' On 'Kimmel