LOS ANGELES (AP) — Joni Mitchell’s famous fans are voicing their support and worry for the folk song icon while she is hospitalized in Los Angeles.

“Harry Potter” star Emma Watson said Wednesday on Twitter that she hasn’t “been able to concentrate” since hearing about the Rock and Roll Hall of Famer’s sickness.

READ MORE: How To Watch The 2021 Primetime Emmy Awards

Kiss lead singer Paul Stanley tweeted a recent picture of himself and Mitchell, telling his followers to send her love and prayers.

Kevin Bacon, Boy George and Tori Amos were also among the well-wishers.

According to her Twitter account and website, Mitchell was found unconscious in her home Tuesday night and taken by ambulance to a hospital. She was later in intensive care and undergoing tests.

There was no further word on her condition Wednesday.

MORE NEWS: Emmys Vow A Good Time After Bleak Year; 'Crown' May Rule

(© Copyright 2015 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)