Kenny Rogers performs onstage for day 1 of the 2017 CMA Music Festival on June 8, 2017 in Nashville, Tennessee.
He had 24 number-one hits and throughout his career, more than 50 million albums sold in the US alone.
He was a six-time Country Music Awards winner and three-time Grammy Award winner, Hagan said.
"Country Music has lost the great Kenny Rogers, who has forever left a mark on Country Music's history," the Country Music Association said in a statement. "His family and friends are in our thoughts during this difficult time."Some of his hits included "Lady," "Lucille," "We've Got Tonight," "Islands In The Stream," and "Through the Years."
His 1978 song "The Gambler" inspired multiple TV movies, with Rogers as the main character.
In 1985, he participated in the original recording of "We Are the World" along with more than three dozen artists. A year later, according to his website, he co-chaired "Hands Across America," a campaign which sought to raise awareness about the homeless and hungry in the US.
In 2015, Rogers announced his retirement.
"I've been so lucky to have enjoyed such a long career and to have such amazing support from my fans and all who have helped me along the way, but there comes a time when I need to focus on spending time with my family," he had said, according to his official website.
"My life is about my wife and my 11-year-old twin boys right now. There are a lot of things I want to do together with them to create some special memories. I don't have a bucket list of my own ... I have a bucket list of things I want to do with them."
According to the statement posted by his publicist, Rogers' family is planning a small, private service out of concern for the coronavirus pandemic, "but look forward to celebrating the life of Kenny Rogers publicly with his friends and fans at a later date."