Ex-Arsenal midfielder Abou Diaby also had to perform in front of a crowd
Like many institutions, football clubs expect their new arrivals to undergo an initiation ceremony.
Fortunately in the football world, they mostly restrict themselves to the mild embarrassment of singing in front of their new team-mates and the like.
On January's Transfer Deadline Day, Scotland international left Sunderland on loan to head to French giants Marseille for the rest of the season.
His initiation owes plenty to Will Smith and the Fresh Prince of Bel Air:
Ex-Arsenal midfielder Abou Diaby might have joined Marseille way back in the summer but due to his perennial injury problems, he's only just returned to fitness.
He also had to perform for his team-mates: