12 Celebs who aired their dirty laundry all over twitter (With Pictures)

5. Katy Perry and Taylor Swift

There’s been a Hollywood rumor going around that Taylor Swift’s single “Bad Blood” is a song about Katy Perry. Apparently, the two singers used to be friends, but now they’ve got…bad blood. When Taylor Swift and Nicki Minaj got into their Twitter battle, Perry took to Twitter to state that it’s ironic that Taylor wants to promote unity among women, when she can’t seem to get along with women. Taylor Swift decided to ignore this Tweet, but Nicki went on Twitter to defend Swift with a pretty animated emoji to get her point across.