Demi Lovato and her family mourn death of baby niece: ‘So grateful I got to hold you’ Fox NewsDemi Lovato mourns death of newborn niece: 'I'll be your auntie forever' USA TODAYDemi Lovato’s Baby Niece Dies Following Emergency C-Section: ‘Grateful I Got to Hold You’ PEOPLEDemi Lovato, sister Madison De La Garza mourn loss of De La Garza's baby daughter Good Morning AmericaDemi Lovato's Baby Niece Dies Following Emergency C-Section HuffPost