VIDEO : Taylor Swift Surprised Her Best Friend With a Dashboard Confessional Concert at Her Birthday

Taylor Swift is proving once again that she really is the greatest BFF in the world!
Over the weekend, the 24-year-old "Shake It Off" singer threw a birthday party for her longtime gal-pal Abigail Anderson. The Grammy winner took to Instagram Sunday to share a bevy of fun party pics from the bash. But a rockin' photo booth and props were not the highlight of the soiree.
In true T.