Rihanna has revealed that she is stressing about putting together Katy Perry's hen party and that it's taking up more time than her tour, according to Access Hollywood.

The 'Love The Way You Lie' singer has said that she expects the wedding to be better than anyone else's and the pressure of organising a hen party that will match is getting too much.

The 21-year-old singer said: "It's taking up way more time than my tour! It's so much pressure. Her wedding is probably going to be the best wedding I've ever been to and now I have to match the bachelorette party to that."

Rihanna also added that even if it was as tame as a kid's party Perry, who is marrying British comedian Russell Brand, will still make it crazy.

She explained: "I could have balloons and Disney characters there and she'll still make it wild. That's just Katy Perry. There's no way around that with her."

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