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Jay-Z, Rihanna

Who's that girl? It's Rihanna! The pop star rocked some dark shades when she shared the stage with pal Jay-Z as they performed during the first day of the BBC Radio 1 Hackney Weekend in London on Saturday. (6/23/2012)

Top Shots of the Week

Miss any of the week's most memorable moments, like David Beckham's boys cheering him on or Katy Perry's movie premiere? Check out omg!'s Top Shots!