It's not too controversial to claim football fans lack originality in their chants.
The "he scores when he wants" chant has been appropriated by supporters of at least half the teams in the football league, and you don't want to get Spurs and Man United fans started on who did "glory glory" first.
Now it's West Ham's turn to cry plagiarism, after Arsenal debuted a very familiar-sounding chant for Mesut Özil.
Compare and contrast...
https://twitter.com/UberWestHam/status/687041492989394944
https://twitter.com/jackAFCmartin/status/688754431924527104
Yes, it's the same, but is it that big a deal?