Sir Paul is marrying former model Heather Mills at Castle Leslie, in the village of Glaslough in County Monaghan on Tuesday afternoon.

In Liverpool, where there is a thriving Beatle's nostalgia industry, there were messages of support for the couple.

When he married Linda in 1969 all the girls were crying, but I don't think there will be the same reaction this time

Mark Byrne, The Beatles Story

A Liverpool City Council spokesman said: "Everybody would wish them well."

That sentiment was echoed elsewhere.

BBC Merseyside presenter and Beatles expert Spencer Leigh said the city still loved The Beatles.

"It will be interesting to see what this does to McCartney's music," he said.

"He has written love songs for the people he has been with - the wedding could have a creative impact on his work."

Mark Byrne, director of The Beatles Story museum at Liverpool's Albert Docks said it was a tragedy when Sir Paul's first wife, Linda died.

Fallen in love

"He will never forget Linda and Heather Mills will never forget Linda - the media will always remind her of Linda.

"But Paul has come to another stage in his life and has met someone and fallen in love and wants to be with this woman for the rest of his life.

"Good luck to them and I hope everything goes well."

Big Heart was dedicated to Heather Mills

He added: "I spoke to visitors from Australia, Japan, Glasgow and Manchester at the exhibition yesterday and asked them about Paul and the wedding and everyone just said it's up to him and they wish him the best of luck.

"There were no negative comments from anyone.

"But when he married Linda in 1969 all the girls were crying but I don't think there will be the same reaction this time around."

Liverpool attracts 600,000 visitors a year - spending �20m - who come to see the city where the world-famous group originated.

The city boasts the Cavern Club, where the Beatles performed in the early 1960s, as well as museums and exhibitions outlining the story of the group.

And an exhibition of Sir Paul's pictures, The Art Of Paul McCartney, will run at the Walker Art Gallery until 4 August.