Taylor Swift has been known to give the crowd what they want. And as part of her 1989 tour, what they want is celebrity cameos on stage with her! For her latest act in Greensboro North Carolina, the "Bad Blood" singer made none other than Country Star Miranda Lambert join her on stage for a rockin female duet of Little Red Wagon. And of course, each singer posted about it on social media, with Swift retweeting Lambert saying "Amazing Show, #inspired"