Dion, 51, posted a photo of Angélil, whom she had known from the age of 12, with a pup on her Instagram account.
The singer opened up about her relationship with her mother and how much she meant to her.
The iconic musician was best known for his drum solos and his 360-degree performance kit.
The actor died unexpectedly at his home in Santa Monica, California, on Wednesday of natural causes.
The MTV star was found dead in her home state of West Virginia on Thursday morning.
The celebrated writer, TV creator and comic actor died in Los Angeles on Wednesday.
Horta's body was discovered in a hotel room in Miami, Florida, on Tuesday. He was 45.
The 911 call regarding Nick Gordon's death on New Year's Day has revealed the state he was in before police were called.
ET remembers the celebrities who died this year.
The grieving mother shared her heartbreaking nightmare in a series of emotional posts on Instagram.
Jones shared the devastating news on Saturday.
Billy and Joe's co-star, Paddy Doherty, mourned their deaths in a Facebook video on Sunday.
He was the host of 'Imus in the Morning' for nearly 50 years.
The actor starred alongside Priyanka Chopra in two films.