Photos: Rihanna & bff celebrate weed-smokers day

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 Rihanna and her bff Melissa shared pics on the instagram pages yesterday showing them celebrating 420, which really is a code-term that describes the consumption of cannabis, according to wikipedia. It's just like a weed-smokers day, celebrated every April 20th of the season around the full time 4:20 p.m. See more photos after the cut...