Rihanna just wrapped up her Diamonds World Tour last night with a show in New Orleans. After the show, she celebrated backstage with her mother, brother, and grandfather, a bottle of champagne in hand. From there, she joined her friend Melissa Forde in an obligatory twerk session. The song they chose to get their twerk on to? T-Pain's latest single, "Up Down (Do This All Day)." The two passed a blunt and got right to twerking, showcasing moves that they have been unabashed in showing off throughout the tour, which has spanned across eight months and every continent except for South America.
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