While appearing on 95-106 Capital FM, the singer joked: "I'm not invited, but am I going to be there? Yes," she joked. "I'm definitely crashing that wedding."
Her relationship with Russell Brand has to led to more than just a love affair with him, it transpires. "I love all the monarchy stuff...," she revealed. "Me and [Brand] watch things all about the history. We want to go to the Tower of London, we were at Windsor Castle the other day... We watch all the movies and documentaries."
If Katy does attend, we wonder what eccentric outfit she should wear...
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