Video: Yoko Ono Sings Katy Perry's 'Firework'

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Ok, so Yoko might not actually realzse that she's singing along to Katy Perry's Firework in the above video because there's a small possiblity some bright spark (get it) added the piano accompaniment afterwards, but that doesn't mean The Bad Beatle didn't somehow subconciously know what she was doing.

After all, both Katy Perry's song and Yoko's shouting fit came out AT A SIMILAR TIME IN 2010. Which, legally speaking, almost certainly means one copied the other, and we think it's safe to say it's now very clear who plagiarised who.

Isn't that right, KATY PERRY.