WATCH: Cardi B thought Tom Petty was still alive

Rapper Cardi B has been angering music fans, more specifically Tom Petty fans, after a post she put out on social media. The rapper brought home hardware for Best Rap Album at this year's edition of the Grammy Awards. 

Shortly after her win, she received a bouquet of flowers with a note that read, "You've got a big heart. So big it could crush this town. Tom Petty." Petty fans might recognize those words as a slight variation of the lyrics from "Walls (Circus)". Cardi B however mistook it for  a personalized note written by Petty himself and took to Twitter and Instagram to thank him, sending music fans into a rage.

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Tom Petty passed away on Oct. 2, 2017.