Celine Dion's brother is also dying of cancer.
The news was first reported by TMZ and has been confirmed by ABC News.
Dion's older brother Daniel is on his deathbed and only has hours left to live, according to TMZ.
Daniel, 59, has been fighting brain, tongue and throat cancer in Dion's native Montreal.
Dion's husband, René Angélil, died at the couple's Henderson home on Thursday morning after a long battle with cancer.