Days after rumors spread through social media that Avril Lavigne had thrown some 'shade' on Taylor Swift, the Canadian singer joined the Shake It Off star on stage in San Diego Saturday night.
Lavigne, 30, was invited by Swift, 25, to perform her 2002 hit Complicated - much to the raucous delight of fans at the sold out 1989 Tour concert at Petco Park.
As the petite blonde belted out her signature song, Swift danced enthusiastically alongside her before chiming in and singing with her.
