Russell Brand's farts are the worst things ever, says Katy Perry

Katy Perry has revealed that her soon-to-be-husband comedian Russell Brand's sense of humour does not extend to the bedroom.

Brand has bad flatulence and likes to trap his emissions under the sheets, the singer said.

"Being a vegetarian his farts are the worst things ever. Lingering and revolting," The Sun quoted Perry as saying.

Then he tries to Dutch oven me! Just too gross," she added.