Dolly Parton's upcoming projects include biopic, coffee, and dog treats

A biopic, a coffee brand and dog treats among Dolly Parton's business projects still to come

Dolly Parton is pictured riding on a truck at her famous Dollywood theme park in Tennessee in 1977

Dolly Parton is pictured riding on a truck at her famous Dollywood theme park in Tennessee in 1977, she's in a yellow and white dresss

Singer and businesswoman Dolly Parton, who died earlier this week, had a slew of projects in the pipeline including a biopic, documentary, avatar show, museum, travel stop for truckers, coffee brand and dog treats.

"Dolly worked up until the day she died. She loved seeing her dreams come to life and loved knowing her work brought people joy," her longtime manager Danny Nozell told US media including Hollywood Reporter.

"If you see unreleased music, products, books, experiences and campaigns launched through official Dolly Parton channels, you can have confidence in knowing that she placed her personal stamp on it," he added.

Parton died peacefully in hospital in Nashville on 25 August after a "brief battle with cancer", after being admitted four days before her death with kidney and autoimmune issues.

Parton's distinctive silhouette can be seen on the fence at Doggy Parton's dog park at Dolly's Tennessean Travel Stop in Cornersville, Tennessee

Nozell said that Parton had worked with her "handpicked" team for the past several years, to "build a project roadmap that will guide us for decades to come".

The hugely successful and popular singer-songwriter and philanthropist took shrewd decisions throughout her career, which made her millions.

Just before her death, she told People on 21 August she was exploring new ways of touring, and that her team was collaborating with companies that create "avatar performances" given her recent health concerns.

She added they were in the "early stages of development", People said.

Dolly's Tennessean Travel Stops (celebrating National Truck Driver Appreciation Week)

Her Broadway show, Dolly: A True Original Musical, opens in December.

Harry Styles added his voice to the deluge of tributes for Parton, saying at his Madison Square Garden show she was "inspiration to his career". He also included her song I Will Always Love you as part of his show.

Meanwhile, flags across the US flew at half-mast on Wednesday, in tribute to the singer.

A family source has told news outlets that a private funeral service is due to take place this weekend in Nashville.

Last year, Parton said she had one song she couldn't talk about - it was still secret and buried in a vault in Dollywood, and will not be released until 2045.