5. Katy Perry
Here is another one. A next door neighbour to Russell Brand! Unlike tonnes of other celebs we all know of this popular entity and a television Singstar has done quite well to cover her more-or-less cottage which happens to be an uncommon practice within her fold.
An interesting thing here is that she sold her pink Barbie home to acquire this mansion with a home insurance cost of $100,000 a year to secure the future for her gigantic investment; which has earned her more fame and concentration.