LOS ANGELES (AP) — Jurors have been shown an email in which the top executive at AEG Live LLC expressed grave concerns about treatments Michael Jackson was receiving from his longtime dermatologist.

The email sent by AEG Live CEO Randy Phillips states the company was "scared to death" of drug injections given to Jackson.

Phillips told jurors on Monday that he was responding to a $48,000 bill Jackson's manager received for the treatments.

The email was sent after a meeting was held at the singer's house to address his health and missed rehearsals.

Phillips is testifying in a negligent hiring lawsuit filed by Jackson's mother against AEG Live.

AEG denies wrongdoing.