Homeless man David Gould has taken advantage of a public piano project in Florida, wowing with his fast-fingers and outstanding musical talent.
A video on Facebook of the bearded man playing Come Sail Away by Styx has gone viral after a week, with over 4 million views at the time of publication.
Gould, a former Marine, has a five-song set to impress passers-by. At the end of the Facebook video he charms with the sweet line: "So easy even a caveman could do it".
He told reporters he never expected his skills would make him an internet sensation.
"It's overwhelming to me," he told WFLA.