YouTuber PewDiePie sorry for calling Singapore, Malaysia fans ‘crazy’ and ‘scream-ish’

• The social media star was stalked by fans during visits to the city state and Kuala Lumpur in 2013 and 2016
• Felix Kjellberg, the world’s top YouTuber, said he was actually comparing fan cultures in Scandinavian and Asian countries in the video posted last year