Celine Dion’s International Meltdown — Friends Fear The Worst

Celine Dion is alarming friends with her oddball behavior — striking weird poses, making silly faces and wearing wacky outfits — and some fear she’s on the verge of a total collapse!

“She’s been acting really bizarrely lately,” a source close to the "My Heart Will Go On" singer blabbed to The National ENQUIRER. “She used to be so gracious, so regal. Now, when fans greet her, she makes funny faces and gestures with her hands, mocking people. It’s very strange and disturbing. There are genuine fears among her friends that she’s headed for a major collapse.”

On July 4, photogs snapped the Vegas star throwing a bizarre fit near her Paris hotel. She was gritting her teeth when she suddenly began pounding the top of a black car with her fists, then climbed on, crossed her legs and struck what appeared to be a yoga pose.

The following day, the confessed shoe fanatic showed up in a wacky floral print dress, popped out of the sunroof of a moving vehicle and pretended to sing into a model of the Eiffel Tower. On June 23, after exiting Paris’ Royal Monceau Hotel, Celine strangely struck another yoga pose in public.

Sources blame the strange antics on her failure to bounce back from the shattering cancer deaths of her manager-hubby Rene Angelil, 73, on Jan. 14, 2016, and her brother Daniel, 59, just two days later.

But her rep insists Celine’s “always had a playful, sometimes zany, side” that the songbird is being “a little bit more open about … after a very, very difficult few years dealing with the personal tragedies.”

Says our insider, “This is all clearly the result of losing Rene, who was her husband and manager for so many years, and Daniel. “The death of a beloved spouse is never easy, but it’s been especially detrimental in Celine’s life. He was her everything, her father figure, her partner, her lover, the father of her children. She doesn’t know how to cope.”