Demi Lovato is awake and with her family after being taken to hospital for a suspected overdose.
US media claims emergency services were called to the 25-year-old's home in LA yesterday. A representative says some of what's being reported is 'incorrect' - but has thanked fans for their support.
The singer has struggled with substance abuse for some time - and last month released a song called Sober - revealing she'd relapsed after six years of sobriety.
Ariana Grande and Ellen DeGeneres are among those who've been tweeting their support:
I love @DDLovato so much. It breaks my heart that she is going through this. She is a light in this world, and I am sending my love to her and her family.
— Ellen DeGeneres (@TheEllenShow) July 24, 2018
i love u @ddlovato
— Ariana Grande (@ArianaGrande) July 24, 2018
We should all wrap our arms of love around Demi Lovato. I am so happy you’re alive. Thank God. If I know my monsters as well as I believe I do, we all wish you self-compassion and inner peace. And may you receive the love so many have for you. #ImConfidentInDemi Demi, I love you.
— Lady Gaga (@ladygaga) July 25, 2018
— J O E J O N A S (@joejonas) July 25, 2018
The world is deeply In Love with you @ddlovato xx
— Sam Smith (@samsmithworld) July 25, 2018