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Justin Bieber

Let's keep it peaceful, girls! Justin Bieber flashed a peace sign in Oslo, Norway, on Wednesday, the same place where a chaotic scene took place earlier in the week as thousands of fans swarmed the city's Opera House, hoping to get into Bieber's upcoming free concert, prompting 15 girls to pass out. "NORWAY - please listen to the police. I dont want anyone getting hurt. I want everything to go to plan but your safety must come first..." the teen idol tweeted on Thursday. (5/30/2012)

Top Shots of the Week

Miss any of the week's most memorable moments, like Rihanna on the set of "End of the World" or Beyonce's big Atlantic City performance? Check out omg!'s Top Shots!