His Last Christmas? Celine Dion's Heartbreaking Holiday With Dying Husband René Angélil

Rather than cruise the tropics with her family, she's spending her off-time leading an around-the-clock team of medical experts for her ill husband, René Angélil.

René, 73, has been suffering with fatal throat cancer for years, but now requires his wife's undivided attention.

The National ENQUIRER reports that the superstar mother of three, 46, is throwing herself into the full-time care as a way of helping cope with the heartbreak of what could be their last Christmas together at their Las Vegas mansion.

Celine's brother Clement Dion and his wife Denise spoke to The ENQUIRER about the "My Heart Will Go On" singer's devastation.

“There are medical staff in the house, but it’s Celine who leads. They take care of all the medical issues, of course," Denise said. "They are the experts but Celine is on top of everything. She knows exactly what is going on. She just wants the very best for him.”

Denise continued, “All the family has been praying for René’s recovery. It has been hard on everybody in the family. Celine doesn’t take any time for herself. All she does is take care of René. She does everything to take care of him.”

Fortunately, René was healthy enough to able to watch their son René Charles, 14, play ice hockey recently. Hopefully his health will continue to improve throughout the holiday season for the sake of their twin sons, Eddie and Nelson, 5.

"Celine is happy Rene made an improvement. She knows he is sick, but now she is happy,” Clement told The ENQUIRER. “Rene wants her to continue working her residency. He wants her to get outside the home and have her singing to concentrate on. I think it has helped her, too. It’s been good for her to have something to focus on.”