The nine-year-old boy is taking part in the filming of its music video in Seoul; the Yachting Race Venue in Suyong Bay, Busan; and other parts of the country, they said.
The filming began on Aug. 3, according to Psy’s management agency, YG Entertainment.
Meanwhile, the release of the new single will be delayed, the sources said. YG was originally scheduled to release it around Aug. 18.
The agency describes “Daddy” as a “fun, dance song.”