Fans got a look at Swift's bandaged thumb through a post she shared on Instagram. 'Band aids don't fix kitchen knife-related injuries," she wrote, in a play on the lyrics to "Bad Blood."

The picture shows her left hand with the "TS" initial ring and a bandage covering her thumb. On the bandage, the number "13," her lucky number. Despite the sliced thumb, the show went on, it even featured a cameo from Ellie Goulding.