A longtime “American Idol” supervisor and her musician husband were allegedly gunned down in their California home by a burglar – who has been arrested over the shocking double murder,

A Los Angeles man Thursday was charged with murder and burglary after he was linked to the fatal shootings of a long-time “American Idol” executive and her husband inside an Encino home this week.

In her illustrious career, she won multiple Guild of Music Supervisors Awards for her exceptional work on the show.