Fancy dress and geek chic: Katy and Russell share intimate moments with fans
She's the pop princess with a love of latex. He's one of Britain's most outspoken comedians. Together, Katy Perry and Russell Brand make a flamboyant couple.
Nevertheless, when they get married at the end of October Russell says it will be a "very normal" affair.
Katy's love of Twitter, which has given fans an insight into their quirky personalities, suggests otherwise