Barbra Streisand showed her support for Celine Dion by sharing a few kind words on Instagram.
The singers recorded a hit duet in 1997 called "Tell Him," and in addition to her message, Streisand also shared a flashback photo of them seated on the stairs next to one another. "Dear @CelineDion -- Every time you look at your children’s faces, you will see René. With love and strength -- B," the musician wrote.
On Jan. 14, Dion's 73-year-old husband, Rene Angélil, died after a long battle with throat cancer. Dion and Angelil were married for 21 years.
WATCH: Rene Angelil Planned His Own Funeral So That Wife Celine Dion Wouldn't Have To
On Thursday, Dion and Angelil's family and friends gathered at his open-casket wake. The GRAMMY winner wore all black and a netted veil as she dabbed her eyes with a tissue while bravely shaking guests' hands who had come to pay their respects at the Notre-Dame Basilica in Montreal. This is the same church where the couple were married.
Dion, 47, returns to the cathedral on Friday for her husband's funeral, where the Archbishop of Montreal will be leading the service. The Premier of Quebec, Philippe Couillard, has declared it a national funeral to honor Angelil, who was born in the city.
WATCH: Celine Dion's Brother Daniel Dion Dies Two Days After Husband Succumbs to Cancer
Here's a closer look at the emotional wake: