"Cheers (Drink to That)," the sixth video from Rihanna's blockbuster album LOUD, finds the singer in an appropriately celebratory mood. Along with footage of her performing in concert and hanging out at the Kadooment Day Parade in her native Barbados, it's mostly a lot of shots of her partying backstage with friends and celebrities such as Jay-Z, Kanye West, Cee Lo Green and Avril Lavigne. 

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