Donald was a homeless man in Sarasota, Florida. Somebody spotted him giving this performance, and videoed it. Donald wasn’t playing his own personal piano. He was 100% homeless at the time of this video, and the piano he played (painted and donated by Viktorija Bulava) was a public piano provided by the restaurant, and was only outside during certain hours of the day.
He didn’t say anything about himself having a phone, and could not confirm that he was carrying a phone, it could very well be a pack of cigarettes. Nevertheless, he had contact details, and he has now landed himself a recording contract.