well the older one is dallas lovato and the younger one is Madison de la garza.
Demi's younger step-sister (her mom divorced her dad) is named Madison De La Garza. Demi's older sister's name is Dallas Lovato. She's 21 and Madison is 8.
Demi lovato has 2 sisters. Her older sister name is Dallas Lovato and her younger half sister name is Madison De La Garza.
maddi Moore as in... maddison Moore
YES