Ashley Tisdale's mother is furious about false Internet rumors the "High School Musical" star has HIV.
The claims appeared online last week, suggesting she contracted the virus from contaminated equipment during a nose job.
They prompted the 22-year-old to speak out denying the claims, and now her mother Lisa is getting involved.
She tells Star magazine, "My daughter is healthy and just fine but my husband and I just don't know why anyone would spread such a rumor.
"And what really upsets me is that anyone can write anything, and it ends up on the Internet. It's so irresponsible; so many people will just assume it's a fact."