Ronaldo, who turned 32 earlier this week, collected his son, Cristiano Jr, from a fancy dress day at school and appeared to get in on the act.
Surrounded by his body guards, Ronaldo threw a cape around his back and pulled a white mask over his face, complete with black and white wig.
He even got his friends involved, as they too were seen wearing capes and masks as they walked from the school back to the car park.