Star Gazing: Rihanna Rocks 40,000 Fans

Rihanna closes out the massive British music festival, Radio 1's Big Weekend. The event is Europe's biggest free festival with more than 60 artists playing to 40,000 fans over two days.

Rihanna closes out the massive British music festival, Radio 1's Big Weekend. The event is Europe's biggest free festival with more than 60 artists playing to 40,000 fans over two days.

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