Video: Portrush busker Dave Mullan's Justin Bieber cover becomes viral hit after being filmed in Sydney
Portrush man Dave Mullan has become an internet sensation after an Australian newspaper filmed him busking in Sydney's Central Station.
The 25-year-old has taken a year out from University to spend time down under.
He was busking in the city's busy station when he was stopped by a reporter from the Daily Telegraph who asked to film him for the paper and he broke into a performance of Justin Bieber's 'Love Yourself'.
Since then, the singer's performance has crossed the world and been viewed almost 50,000 times.