Taylor Swift invited Wiz Khalifa to join her as a special guest on her 1989 World Tour. This image appears in the gallery:28 Pictures You Might Have Missed This Week (7th September 2015) 7. Taylor Swift invited Wiz Khalifa to join her as a special guest on her 1989 World Tour. The two performed 'See You Again' together. Picture: Getty 25 images See the full gallery: 28 Pictures You Might Have Missed This Week (7th September 2015)