VIDEO : Taylor Swift Dances With Left Shark Onstage During 'Bad Blood' Performance

While on her much-hyped 1989 World Tour, Taylor Swift played a show in Foxborough, Mass. over the weekend. The tour is becoming as well known for its performances as well as its surprise guests, but this show featured a guest no one saw coming: a Shark. While Taylor's dance only appeared in the shark costume for a brief minute, it was undoubtedly a reference to the internet famous Left Shark who famously danced with Katy Perry at last year's SuperBowl and flubbed its dance moves.