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.

Demi Lovato Reveals She Has a Secret Sister!

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

Demi Lovato - Wikipedia

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

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

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

Demi Lovato Reveals a Huge Family Secret!

Demi Lovato Couldn't See Her Sister After Overdose

Demi Lovato Praises Kardashians For Positive Body Image (2014/08/28)- Tickets to Movies in Theaters, Broadway Shows, London Theatre & More

Why Demi Lovato's secret half sister is incredible

Demi Lovato Gets Candid About Why She's Opening Up About Her Dark Past With Drugs; Hopes to Teach Her Little Sister - In Touch Weekly