Britney Spears' Dog @HannahSpears Has Gone Viral On Twitter

Hannah Spears — Britney Spears' 8-week-old Yorkshire terrier — made her Twitter debut on November 26 with one simple word:

The human Spears also introduced the pup via her own Twitter account to her nearly 22.5 million followers, writing, "I want you all to meet my new little baby girl @hannahspears

Since then, the cute mutt whose personal bio reads "I'm Britney's B*tch," has amassed nearly 26,000 Twitter followers and counting, while she only follows five people — all from the Spears camp.

But despite her small size, Hannah has a big bite when it comes to her tweets.

First of all, she's a press hound.

And a princess:

But she's not always ladylike:

She has celebrity friends:

But there's one famous pup she has yet to befriend:

Now meet Boo, the even more viral pet belonging to a Facebook employee >

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