Beyonce shocked fans on the opening night of her 2013 world tour in Serbia on Monday (15Apr13) by showing off a selection of saucy stage costumes, including a bodysuit adorned with glittering fake nipples. The pop superstar kicked off The Mrs. Carter Show world tour at the Kombank Arena in Belgrade and she turned heads by flashing the flesh in a number of revealing outfits. Beyonce's costumes were created by fashion designers including Julien Macdonald and DSquared2, and included a headline-grabbing gold bodysuit, decorated with the outline of glittering breasts, which became a huge talking point among fans. Her other outfits included a more modest black and purple catsuit, slashed almost to the navel, and a flowing red dress with thigh-high slits. The singer kicked off the show with her hit Run the World (Girls) and performed tracks including Irreplaceable, Crazy In Love and Single Ladies (Put A Ring On It) before finishing the show with Halo. After the concert, Beyonce posted a picture of the crowd on her Instagram.com page, writing, "Thank you Serbia!" The tour will stop in countries including the U.K., France and Sweden, before concluding in New York City on 5 August (13).