Showbiz Spy reports: The singer, 53, still shattered over her late son Michael’s suicide and has been spiraling into the holiday blues while rehearsing for her upcoming Donny & Marie – Christmas in Los Angeles show.
“Marie turns into an emotional wreck each time she comes to L.A., but especially near the Christmas holidays because she is so overcome with memories and feelings of guilt over Michael’s death,” a source told American tabloid the National Enquirer.
Michael, 18, plummeted to his death from his 8th floor apartment on Feb. 26, 2010.
“Executives on the show have already complained about Marie’s behavior,” added the source.
“She’s constantly on edge, barking over trivial details and bombarding everyone with a litany of questions about everything from the sound, the lighting and even her dressing room!
“It got so bad that one of Marie’s support people pulled aside a show executive to explain why she’s taken on such a gloomy personality and has become so difficult to work with.
“But Marie’s closest friends have seen this drastic change before, and they’re worried sick she’s heading for another emotional meltdown – or worse!
“Chances are theatergoers won’t have a clue how distraught Marie is because she’ll put on such an amazing show. But you can bet she’ll be thinking of Michael the whole time.”