The 25-year host of CNN's "Larry King Live" had been hospitalised after contracting COVID-19.
He was one of the greatest music producers of the 20th century, and one of its darkest men.
The Grammy winner scored several hits, including “Ain’t No Way To Treat a Lady,” “Delta Dawn” and “You and Me Against the World.”
The wrestler, whose real name was James Harris, was part of pro wrestling's 1980s popularity boom.
The two-time Oscar winner and 'Gone with the Wind' star was also a vocal opponent of unfair labour laws and sexism in Hollywood.
"Working with Grant was so much fun," former co-host Adam Savage said. "I’ll miss my friend."
“She fought a courageous fight with the love and support of so many," her husband, actor John Travolta, said Sunday.
Letourneau, who later married her victim, was the subject of a USA Network movie, “All American Girl.”
The actor, who was famous for mastering deadpan comedy, died of natural causes.
The actor, also known for his roles 'Life Of Pi and many Bollywood films, died in a hospital in India on Wednesday.