What does an unauthorised twitter account mean?

[Choco]

I don't use twitter however I was curious to look up a celebrity http://twitter.com/#!/AsherKeddie on the page it said it was an unauthorised. So is it the actual person or just a fan?

Thanks in advance.

[BoyTBK]

I think, its just fan page

[KirstyTMB]

because of the way the bio's been written i think its just a fan page but not all celebrities have their accounts verified even if it is actually them.