Under the Influence of Justin Bieber: Photographs by Joachim Ladefoged

Justin and his crew get psyched backstage just before a concert begins in Zurich, Switzerland's Hallen Stadium. April 8, 2011For the TIME 100 photographer Joachim Ladefoged caught up with the teen idol and his adoring fans during his world tour in Europe. The crew traveled to Hallen Stadium in Zurich, Switzerland  for an exclusive look behind the scenes and to find out who Bieber’s choice for