Demi Lovato reveals sister: Singer never knew she had a secret

quot;X Factor" judge Demi Lovato just found out she had an older half-sister.

30+ Demi Lovato Facts Every Fan Should Know

Demi Lovato's Documentary Series Biggest Revelations

Demi Lovato reveals what happened when she tried to get Kylie Jenner's HUGE lips - Irish Mirror Online

Demi Lovato's 'Dancing With the Devil' Docuseries: Singer Opens Up About Sexual Trauma

Demi Lovato Says She's in 'Chill' Mode with Wedding Planning: 'I'm Just Really Looking Forward to It' (Exclusive)

Demi Lovato reveals secret half-sister: 'I never knew my whole life!

Demi Lovato Says She's in 'Chill' Mode with Wedding Planning (Exclusive)

Demi Lovato Was Banned From Seeing Her Sister Until She Got Sober

Demi Lovato reveals her terrified parents banned her from seeing her little sister at the height of her drug addiction

Demi Lovato discusses her documentary, new album, and 'California sobriety

Demi Lovato Says She Wants the Goo Goo Dolls to Perform the First Dance Song at Her Wedding

Demi Lovato's Younger Sister Madison De La Garza Celebrates 230 Days of Sobriety, Demi Lovato's younger sister, Madison De La Garza, celebrates being 230 days sober., By Entertainment Tonight