Gangnam Style star Psy was praised by South Korea's president and slammed by its state broadcaster all on the same day.

While President Park Geun-Hye cited Psy's "exemplary" respect for copyright principles, KBS television banned music video for his new song Gentleman saying it could encourage anti-social behaviour.

Naughty, naughty ... Psy's Gentleman video considered anti-social due to the South Korea pop star kicking a 'No Parking' cone. Credit:YouTube

A KBS statement suggested the offending sequences in the video, which has already clocked up 150 million views on YouTube, showed Psy jaywalking down an empty street and then kicking a traffic cone labelled "No Parking".

KBS said the images might set a bad example to younger viewers and did not meet the standards set by the state broadcaster.