Popsugar Celebrity Celebrity Families Demi Lovato's Mum Dianna De La Garza's Quotes About Overdose Demi Lovato's Mum Breaks Her Silence on the Singer's Overdose: "My Heart Just Dropped" 20 September 2018 by Monica Sisavat Solís View On One Page Photo 2 of 4 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Previous Next Start Slideshow Celebrity FamiliesCelebrity QuotesDemi Lovato