A rep for trailblazing country music star Loretta Lynn has revealed her cause of death.
Lynn passed away yesterday morning (October 4) at her ranch in Hurricane Mills, Tennessee, at the age of 90.
Now, a rep has revealed to TMZ that the 'Coal Miner's Daughter' singer passed away from natural causes and that she was surrounded by family members when she died.

The star has had several health complications to contend with in recent years. In 2017, she suffered a stroke - an incident that put an end to her touring after 57 years of performing. A year later in 2018, she reportedly broke her her hip.
An earlier statement released by Lynn's family read: "Our precious mom, Loretta Lynn, passed away peacefully this morning, October 4th, in her sleep at home in her beloved ranch in Hurricane Mills."
The family went on to ask for privacy at this time, but did let the singer's fans know that a date for the funeral will be announced, per The Washington Post.

Lynn - the daughter of a Kentucky coal miner - embarked on her music career in the early 1960s, with songs about love and the pride she felt for her rural upbringing and lifestyle.
Speaking to TODAY’s Jenna Bush Hager back in 2018, Lynn revealed: "I write about my life — in every song I’ve written."
Alongside tracks like 'You Ain’t Woman Enough', 'The Pill', and 'You’re Looking at Country', Lynn was renowned for her biggest hit - 'Coal Miners Daughter'.
"I would have given anything in the world if [my father] would have been here when I recorded 'Coal Miner’s Daughter,' but I think he hears me," she revealed. "And one day I will sing it for him."

The mom-of-six had already welcomed four of her children before she launched her career, but her remarkable songwriting and voice helped lead her from poverty to international fame.
Over the course of her career, she won numerous accolades for her music, including the Presidential Medal of Freedom, which she was awarded by President Barack Obama in 2013.
Lynn was also inducted into The Country Music Hall of Fame in 1988 and the Nashville Songwriters Hall of Fame.