Indeed, Antonio left Nottingham Forest for West Ham back in August and fans of his old club have been supportive of the 25-year-old during his transition to the Premier League.
Against Sunderland, he netted his fourth Premier League goal of the season for the Hammers - but what he did next surprised many.
Antonio celebrated his goal with a hilarious take on Homer Simpson's dance move where he can be best described as a chicken running around in circles... on the floor. It's quite hard to put into words actually...
West Ham are up to fifth in the Premier League after their win, while Forest are down to 15th in the Championship after their loss.