Swift has been singing covers of some of her favorite artist’s at each tour stop she’s made. Justin Bieber’s, “Baby”, has been a re-occuring song but this time during her L.A. show, Bieber actually joined her on stage! The lucky fans scored the duet out of complete surprise. Swift has four sold out concerts in L.A. but no word on whether or not Bieber will be showing up for any of the other scheduled dates.
One audience member caught the duet on camera – take a look at it below!