Tourism Ireland set up “Virtureel” at Central Station, in Sydney, the site of last year's hugely successful “Riverdance” flash mob. The public welcomed the novelty warmly.

One man said he felt like he was in “Star Trek” and wanted to be “beamed over to Ireland”.

Check out the video and watch to the end to see the public’s shock when the real life dancers join in with their “Riverdance” moment.

Read more: St. Patrick's Day Irish dancing flash mob takes Sydney by surprise - SEE VIDEO

Here's the video: