Demi Lovato celebrates six months sober

She almost succumbed to an overdose last year

Demi Lovato isn’t ready to talk overdose and rehab

"I don’t owe anyone anything so I’m not going to"

Demi Lovato is 90 days sober, according to her mum

She’s been in rehab since she suffered a drug overdose in July

UPDATE: Demi Lovato is out of hospital two weeks after overdose

She was taken straight to a rehab facility