Please Welcome to the Stage: Every Single Surprise Taylor Swift Guest

Who?! Not only is she married to Adam Levine, but she's been a Victoria's Secret Angel since 2009. She even opened the show last year!
Where?! She joined a slew of ladies in New Jersey.
Why?! Seeing as she's a VS model, we're sure she and Taylor have crossed paths a handful of times. Good enough for an invite on stage with so many other people.