Rihanna wants to duet with [art]Katy Perry[art].

'Rude Boy' singer Rihanna has forged a close friendship with Katy, and even organised her bachelorette party in Las Vegas last month, and now wants to work professionally with her too.

Rihanna told Entertainment Today: "We want to get in the studio and hopefully make something for an album, who knows - or maybe for her re-release. We want to do something together for sure.

"In this industry you don't meet a lot of people that are genuine, but Katy is such a free spirit, she has no edit button.

"We just clicked. We have similar personalities and a similar sense of humour and from there she just seemed like a really down to earth person."

Rihanna's comments come only days after she described Katy's music as "generic" when promoting her latest album, 'Loud.'

She said: "Every song was tailored to me. I wanted songs that were all Rihanna, songs that nobody else could do.

"I didn't want the generic pop record that Ke$ha or Lady Gaga or Katy Perry would do."

Rihanna's 'Loud' is scheduled for release on November 12.