Today's Tickets @ 2 Song: "Hurts So Good" by John Mellencamp
WATCH: Yoko Ono "Sings" Katy PerryRock fans have often been critical of Yoko Ono's avant-garde vocal stylings, and it seems that some have been getting a good laugh out of a new viral video, where she appears to be singing along to Katy Perry's "Firework."

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