"I decided in the morning. But I was not too hungry. So I spent another two hours to the Basel and I eat it," performance artist David Datuna, who was born in Georgia, the former Soviet republic, told reporters in New York on Monday.
Artist Maurizio Cattelan's piece - a banana duct-taped to a wall and called "Comedian" - sold for $120,000.
Datuna joined the crowd taking selfies with the banana on Saturday and then pulled off the tape and ate the banana in a video widely shared on social media.