You probably know that Katy Perry and Taylor Swift have had a long-standing feud. However, they did not start off on bad feet. Instead, they used to be friends and shared stories commiserating about life in the limelight. However, when Taylor was about to go on tour, Katy did something that ended their friendship forever.

Without any warning, Katy Perry stole Taylor Swift’s backup dancers right out from under her. This left Swift in a very bad situation with only a short time to recuperate before paying audiences expected to see her on tour at her best.

Katy Perry’s cheating ways spawned the Bad Blood music video and Katy’s response song Swish Swish. These two might be on better terms now.

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