who is the song bad blood written about
Bad Blood (Taylor Swift song) Swift co-wrote "Bad Blood" about an undisclosed female musician. Swift says the artist attempted to sabotage one of her concert tours by hiring people who worked for her.[3] Publications such as Billboard, Rolling Stone, Time, and The Washington Post have speculated that Katy Perry is the subject of the song.[4][5][6][7] Daniel D'Addario for Time and Emily Yahr for The Washington Post noted parallels between "Bad Blood"'s lyric "If you live like that, you live with ghosts" and "Ghost", a song from Perry's 2013 album Prism.[6][7] The album version of the song only contains Swift as the vocalist on verses, while the single version features a re-worked instrumental and guest vocals from rapper Kendrick Lamar on verses.