Ozzy Osbourne's daughter was hospitalised in Los Angeles on Thursday (07Mar13) after collapsing while filming her U.S. Tv show Fashion Police.
The star has since revealed doctors are carrying out tests to determine what caused the seizure, and a number of her famous friends have wished her well as she recovers.
Fergie sent a Twitter message to Osbourne, writing, "Thinking of you," while rocker Love wrote, "God bless you baby you'll be OK I'm rooting for you."
Singer Adam Lambert also passed on a message via Twitter.com, writing, "Thinking of ya (sic) - hope your (sic) feeling better" and Alyssa Milano offers, "Thinking of you and wishing you a speedy recovery, ladybug!"
Actress Kat Graham adds, "Sending you lots of love and good energy."