Rihanna has reportedly revealed that she can't wait to get married to boyfriend Katy Perry, who is set to wed Russell Brand in the next few weeks.

A source told the tabloid: "Rihanna adores Matt. She can’t imagine life without him. Ri’s really involved with the wedding because she’s one of Katy’s best friends."

The friend continued: "She wants that same sort of happiness. They want a formal engagement next year and won’t take long to get married."

Meanwhile, Rihanna's wedding could be quite a dark affair, after reports suggest that the Rude Boy hitmaker demanded that everything in her trailer for her new video shoot be black.

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The 22-year old, who was shooting scenes for her latest track What's My Name in NYC over the weekend, stated that she wanted furnishings, towels, robes and candles all in the dark colour.

An insider told The Sun: "Rihanna made very strict demands about her trailer. She was very specific that everything had to be black and the production crew did as they were told."

She was also pictured wearing a wacky outfit, consisting of fishnet tights, zebra print jacket and tight hot-pants for the promo.