The following year he relocated to Sydney, where he still has a home, and worked for a booking agency, Consolidated Rock, which had been set up by Michael Browning and Michael Gudinski.

In October 1972 Davies set up the Sunrise booking agency with fellow workmate Michael Chugg.

Their clients included Sherbet, which under Davies’ guidance would go on to become one of the most popular acts in the country, and launch Davies’ career into the showbiz stratosphere, with the likes of Olivia Newton John and Cher landing in his orbit.

Davies went on to became one of the music industry’s biggest players in Los Angeles. He makes a rare appearance in the new Tina documentary, which looks at the extraordinary life and career of the singer and how she came back from the brink, largely thanks to Davies.

Davies, who has also handled Sade and continues to work with Pink, has long avoided courting personal publicity. His oldest friends told me he would prefer to let his stars do the shining.

When I reached out to him to see if his media reticence had subsided, he politely and humbly declined my overtures. Hopefully one day soon he’ll change his mind, he certainly has a great story to share: how a Melbourne roadie ended up becoming a true king of pop.

It has largely been up to others to paint a portrait of Davies. In one of the few interviews he has given over the years, he acknowledges he is not your average talent manager.

“It’s rare for an artist and manager to be together after 20 years, to be friends and not talking through lawyers,” he said in 2010 of his relationship with Turner.

“We’ve never had a contract. It was our word and it still is. I wouldn’t have it any other way.”

At the time Turner herself described having Davies on her side as “like having another eye.”

“When I’m totally involved in something, I can’t see it from the outside but Roger looks at the show, at the running order of an album and makes a lot of good suggestions and changes. We’re almost like family,” she said.

And she’s right. In an industry filled with bloated egos vying for attention, Davies told me that it was out of loyalty to his “high profile” clients that he has avoided giving interviews.