Katy Perry vs. Taylor Swift
This next feud proves that nothing is permanent in this world, not even friendship. Once BFFs, Katy Perry and Taylor Swift eventually had an unforgettable fight that the fans of each singer followed until the very end. Everyone, Swifty or not, knows that Taylor wrote “Bad Blood” with Katy Perry in mind, while Katy wrote “Swish Swish” with Taylor in mind. Their rift started all because Taylor’s backup dancers defected from her Red tour to Perry’s Prismatic trek. Finally, in 2019, the two put their feud to rest when Katy appeared in Taylor’s latest music video, “You Need to Calm Down.”