Marie Osmond has scrapped a string Las Vegas variety shows to allow her more time to grieve the death of her teenage son.
The singer has been mourning the loss of adopted Michael Blosil, 18, who was found dead outside his Los Angeles apartment building last month.
The teen, who is believed to have committed suicide, was laid to rest in Utah on March 8th and Osmond resumed her role in "The Donny & Marie Show" with brother Donny Osmond just a day later.
Reports have suggested the Paper Roses singer has been struggling to contain her emotions in recent performances, and the National Enquirer claims she sparked fears for her health when she collapsed into a chair backstage upon her Vegas comeback.
A source told the tabloid, "Right after Marie got backstage, she shuddered and began to fall. Her knees buckled and she slumped into a chair... She collapsed because she was in the same place where she had learned of his death, backstage at the Flamingo."
The insider claims Osmond had been advised by doctors to take time out of her busy work schedule to deal with her grief in private - and now she's taking heed of their wise words.
The star has canceled the remainder of "The Donny & Marie Show" dates for this week and her representative Alan Nierob tells People.com, "She's still processing everything and it's really rough on her."
The Osmonds are expected to resume their variety act next Tuesday.