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It’s officially over for good! How do we know? Katy Perry unfollowed Russell Brand on Twitter of course!

The 27-year-old “Firework” singer isn’t Twitter friends with her soon-to-be ex-husband; however she is still very much one of the 78 people he is following.

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Katy may have hit the unfollow button due to news that Russell is shopping a tell-all book which will expose all the dirty details of the duo’s split. 

A close source tells Us Weekly the singer is cutting communication between the two all the way down.

The source reveals:

“She’s limiting those interactions, he’s being so atrocious that she feel like she never really knew him.”

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Depsite going through the heartbreaking split, Katy has been keeping busy recently performing in Jakarta, Indonesia and shooting an adidas ad in California.

We hope this split doesn’t get any uglier.

Should Katy have unfollowed Russell on Twitter or is it immature?

SOURCE: Us Weekly