Demi Lovato was hospitalized Tuesday for a nasty lung infection ... TMZ has learned.
We're told a friend took Demi to the ER at Providence Tarzana Medical Center because she was having significant trouble breathing.
Doctors did a bunch of tests and decided her problem was flu-related. They gave her medication, including a Z-Pak.
As of late Tuesday afternoon, we're told she was still at the hospital.
The timing sucked, because Demi is recording an album and she had studio time Tuesday with a big producer and she had to cancel.
But don't worry! She's fine! She is just sick and, as she said, nothing that chiken soup can't heal! Get well soon Demi!
ddlovato: Watched her grow into a humble, beautiful and strong young woman!! ❤️ you girl 😘😘😘😘