Usually when you think of spotting your favourite celebrity, it’s most likely outside a venue or their hotel (at the max). That wasn’t the case last night in Olso, Norway when Justin Bieber wrapped up his not so “surprise” concert on a floating stage outside the Olso Opera House. The stage itself brought tons of speculation before it was even announced on Twitter. Did we mention the admission was free?! Bieber’s manager Scooter Braun called TMZ to share his take on yesterday’s madness: “You think you’re a grown man who’s pretty tough, I’ll put 30 teenage girls in front of you and you will loose.” Justin later posted a video on the app Viddy of the screaming girls chasing him…by boat! He was forced to make his way back to land on a fire rescue boat, but he sure does love his Beliebers. Justin is now in Paris continuing his promotional tour for his upcoming album, Believe. He tweeted, “now off to another #secretshow but this time a little more intimate and romantic. #cityoflove” Ahhh! How romantic!