Actor Chen Tianwen welcomed a new addition to his family on June 12, after his wife gave birth to a baby boy, reports local media.
His manager said Chen's 3.5kg son has not yet been named.
The actor is well known for his role in the unbelievably viral 'Unbelievable' music video, as well as the award-winning 2013 film Ilo Ilo.
Chen has admitted that he sang 'Unbelievable' to his baby boy before he was born. According to a post on Lianhe Wanbao's Facebook page, the baby is nicknamed "Xiao Un", or "Little Un", after the hit song.
Comments on Twitter also echoed this theme, with netizens congratulating Chen for an upcoming, unbelievable fatherhood.
See more images of Chen Tianwen's newborn in the gallery below.