Famous Scots including Annie Lennox, Alan Cumming and Kevin McKidd have spoken out on the day of the country's crunch referendum to urge fans to vote on the country's future.

Scotland goes to the polls on Thursday (18Sep14) to decide whether to break away from the United Kingdom, and a slew of high-profile stars have spoken out in a last-ditch bid to sway the votes.

Eurythmics star Lennox, who was born in Aberdeen, insists she does not have a personal preference which way the vote goes, but she has urged her fellow Scots to think carefully before casting their ballot.

In a post on her Facebook.com page, she writes, "I am 'agnostic' in this matter... Once the die is cast... It will be what it will be. As a Scot who has lived beyond the border for over two thirds of my lifetime, I have no right to vote, therefore my view is practically irrelevant. However - I would like to say this... Whichever way you cast your vote, please think long term. A pro independence vote will be absolutely irreversible... Be wise Scotia... The future is in your hands."

Grey's Anatomy star MCKidd, who is backing the 'Yes' campaign, tells Britain's Daily Record newspaper, "I've always been a supporter of independence for Scotland... I don't live in Scotland so don't get a vote, but all my family are still here... Everybody is going to be relieved when Friday comes no matter what happens."

Social networking website Twitter.com has also been flooded with debate over the vote, and another 'Yes' campaigner, The Good Wife star Cumming, writes, "Scotland! Please! Dare to dream," while Icelandic singer Bjork adds, "Declare independence... Go Scotland go!!!!!!!!"

Actor/funnyman Russell Brand writes, "Scotland, be brave. Vote with your hearts. You can strike the first blow for us against Westminster," while Simon Pegg adds, "Thinking of you Scotland. Give it all you've got," before joking, "Apparently a number of impatient 'Yes' campaigners have unbuckled Scotland and are currently towing it into the North Sea."

Harry Potter author J. K. Rowling writes on Wednesday night (17Sep14), "Big day in Scotland tomorrow #indyref (sic). My head says no and my heart shouts it - but whatever happens, I hope we're all friends by Saturday."

Others stars campaigning online on Thursday included actors Ashley Judd, Luke Treadaway, and David Morrissey, filmmaker Michael Moore, rocker Tim Burgess, singer Alison Moyet and tennis ace Andy Murray.