IT will have all the glamour of the recent Leonardo Dicaprio and George Clooney visits but with an added dose of global power.

Promoting his work of his foundation, Barack Obama, the 44th president of the United States, will visit Scotland next month when he addresses business leaders at a charity event.

It will be Mr Obama's first visit to Scotland, a country from which the first black president of the world's biggest superpower claims ancestry and where his successor Donald Trump will also grace later this year.

The £5000-a-head dinner on May 26 is one of few major addresses made by Mr Obama since his term as president came to an end, with the event organised by businessman and philanthropist Sir Tom Hunter's Hunter Foundation.

While the former president made a number of high-profile interventions on Brexit and Scottish independence while at the White House, he is expected to restrict his views to issues around social justice. Like the Hollywood A-listers a visit to the Edinburgh cafe Social Bite is expected to be on the itinerary.

Sir Tom, who set up a charitable organisation with Bill Clinton, another speaker at Hunter Foundation events, in 2005, revealed former US ambassador to the UK Matthew Barzun, a key Obama ally, had helped set up the event.

He said: "I've been thinking about this event for a long time but its only come to fruition recently. It's a bit premature to talk about setting up something similar to the Clinton-Hunter Development Initiative as I've never even met Mr Obama.

"I don't think there's ever been a busier or more interesting time in geopolitics. But its down to Mr Obama what he's going to talk about."

First Minister Nicola Sturgeon said: "It’s fantastic news and I know everybody in Scotland will be really excited to hear President Obama is visiting Edinburgh. I’m sure he will have words that many people in Scotland and across the world will want to hear so I look forward to hearing him and I know many people in Scotland will be looking forward to that as well.”

Liz Cameron, chief executive of Scottish Chambers of Commerce, said: "With President Obama’s involvement in the event, the inevitable spotlight will give us a unique opportunity to showcase, not only the generosity of the business community but also the elements that make Scotland great: from our talented people to our innovative businesses, to our food and drink and our stunning landscapes.”

Karen Wright, an expert on citizenship at Glasgow University and hailing originally from San Francisco, said Mr Obama would learn as much from his visit as those listening to his experiences.

She said: "There'll be much to learn from his reflections but the will work both ways. Scotland has granted the right to vote to 16 and 17-year-olds , one of the few places in the world to do so, and are more politically engaged than many countries. I believe he'll be very interested to see what's happening in Scotland and its relevance to his foundation work.

"I doubt he'll speak in a way that will be provocative but he's also proven his capacity for humour in the past."

While Mr Obama's Kenyan and Hawaiian roots are well known, during a recent Democratic Convention he played up his Scots-Irish heritage, telling the audience: "See, my grandparents, they came from the heartland. Their ancestors began settling there about 200 years ago. I don't know if they had their birth certificates, but they were there.

"They were Scotch-Irish mostly, farmers, teachers, ranch hands, pharmacists, oil rig workers. Hearty, small-town folks. And my grandparents explained that folks in these parts, they didn't like show-offs, they didn't admire braggarts or bullies."

Dr Fabian Hilfrich, senior lecturer in American History at Edinburgh University

I really don't expect Mr Obama to say anything substantial about what's politically current. In contrast to President Trump he will preserve that comradery and the long established protocol between those who have held that office and not speak about his successor in any personal way.

He is primarily doing a favour to the Hunter Foundation and campaigning for the Obama Foundation, through which he's engaged with social issues.

He's clearly not OK with some of the social costs of policies of the Trump administration but the politics will only be implied through his foundation work. He'll remain engaged around issues of education and social justice.

And unlike other statesmen of his age will not be speaking for money. That's in contrast to people like Bill Clinton or Tony Blair who require fees to speak.

Mr Obama will not have changed his mind on the issues such as Brexit or the impact of independence, which he's spoken about as president. But while he may refer back to what he's said in the past in an interview I wouldn't expect him to revisit them in any speeches, mindful that this would be a private person interfering and possibly unwelcome in some parts. He's here to raise money.

What will be interesting to see is if he will play any golf. A quip along those lines isn't beyond him. But it won't be a Trump course. He's not going to go down that road. Even in the face of Trump's wire tapping allegations he's sticking with 'the cool president' persona.

I think what we will see and what will be picked up in the US is the marked difference in the public reception to the Obama visit and President Trump's to the UK later. US audiences will have the very different approaches the UK media will take to both visits pointed out.

During the 2014 Scottish referendum people in the US seemed very puzzled about what was happening here. By now most politically engaged Americans know about Brexit, they know about the Trump connection. Scotland is higher profile than it has been in previous years.

But Mr Obama has been maintaining a low profile since leaving the White House and I don't expect this visit to be major news in the US.