NEW YORK, Nov. 6 (UPI) -- Robert De Niro lashed out against tech mogul Stewart Butterfield onstage, taking offense at his comments regarding celebrities.
Page Six reported the spat took place during the Wall Street Journal's Magazine Innovator Awards in New York City on Wednesday. Butterfield, who co-founded Flickr and office messaging application Slack, took the stage before De Niro to accept an award for Technology Innovator. It was then during his acceptance speech that he rubbed De Niro the wrong way.