‘Sparks Fly’ At Taylor Swift Concert In L.A. [VIDEO]

According to Taste of Country.com, fans got a real surprise last at the Taylor Swift concert in L.A.  Sparks were flying when Justin Bieber appeared on stage sang his hit 'Baby' with Taylor!  I'm sure every teen girl in the Staples Center went crazy! Check out the video of  Taylor and Justin's duet and of Taylor's latest single 'Sparks Fly!'