Backstreet Boys Perform At Olympiahalle [Getty Images]

MUNICH, GERMANY - MARCH 03: Kevin Richardson, Howie Dorough, Alexander James McLean, Brian Littrell and Nick Carter of Backstreet Boys perform at Olympiahalle on March 3, 2014 in Munich, Germany. (Photo by Stefan M. Prager/Redferns via Getty Images)

Redferns Stefan M. Prager