She made history again on Sunday as the first artist to appear twice on Country Music Roll of Renown at Tamworth.

Ms McKean was first inducted in 1983 as one half of The McKean Sisters - the yodelling duo formed with her sister, Heather, that brought the pair to fame in the 1940s and '50s.

It was as part of the family duo that Ms McKean would go on to meet her late husband, country music legend Slim Dusty.

Ms McKean was among family and friends from around the country Sunday as her second plaque was unveiled beside her late husband's at the Tamworth Regional Entertainment and Conference Centre.

"It is great to see you all here even if you are all family," Max Ellis, the chairman of the selection panel, joked before the unveiling. "One thing about the Kirkpatricks is that there's plenty of them."

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Ms McKean's most recent plaque is set beside and slightly below that of Slim Dusty's, sharing the same granite boulder as inaugural inductee Tex Morton, legendary Australian guitarists Phil and Tommy Emmanuel, Kasey Chambers, Ms McKean's former act as The McKean Sisters, and 2017 inductee Troy Cassar-Daley who presented her with the accolade at Saturday night's 48^th Golden Guitar Awards.

"I had no idea what was going on," Ms McKean said. "They just about lifted me out of my chair in the front row, carted round the back and then I walked out to this induction ceremony.

"It was absolutely fantastic and so unexpected. They have done a whole heap of unexpected things this week. It has been a great week for me."

Ms McKean acknowledged the support of her family in her induction speech and said she was proud to have her own plaque added to the Roll of now near 50 iconic country stars, as she reflected on the history of Australia country music.

"One of the most precious things I was given during the week was from a little girl, who made me a guitar from a tissue box and some coloured rubber bands," she said. "I think that is one of the most precious things I will take with my memories of Tamworth."

"One thing I would ask people coming up, going in their different styles - find your history in Australian country music. Find out what the basics are and then go ahead and build your style on it. But know what you are doing. Understand where you came from and what you are doing."

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Cassar-Daley, who was presented with his Roll of Renown plaque by Ms McKean in 2017, said he would not have missed the event for the world.

"I'm standing here a little bit gobsmacked," he said. "I feel like my own plaque is in really good company - just being on the same rock as Slim and Joy is just amazing. There is a lot of history on just that one face of rock there."

"I always feel like the only way to move forward with our music is to continue to look back. I got a lot of inspiration from Joy's show (the Concert for Joy on Wednesday) - seeing Paul Kelly and Don Walker sing her songs - I just thought we were looking back into Joy's history of her music and we're learning from it."

Cassar-Daley, who hinted at the possibility of a new writing collaboration with Paul Kelly this year, said he was feeling ready to create new music after the induction.

"If I get a chance to write with Paul this year, we should be using what Joy has already laid down as our foundation. I'm keen as anything to be able to write songs after being here this week."

Ms McKean turned 90 earlier this month, celebrating with a special concert at the Tamworth Town Hall on Wednesday.