Co-stars turn enemies? Hong Kong actor Chapman To and Taiwanese singer Jay Chou might have been co-stars in the 2005 action flick Initial D but it looks like they are anything but friends now.

To, who has been sporting a buffed physique lately, took to his Facebook account to fat-shame Chou over a recent photo of the Mandopop singer and his wife Hannah Quinlivan at the premiere of the film Nezha.