The Insider.com

"Big announcement tomorrow!" That's what Katherine Heigl left her Tweeps with last night, wondering what could possibly be declared this morning.

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Was she returning to Grey's Anatomy?

Would she be adopting another adorable baby?

Did she plan to star in yet another movie that tried in vain to replicate the adorable success of 27 Dresses? A movie that I am still incapable of flipping past when it's on USA...

Turns out none of those were true. Katherine's big announcement was revealed moments ago: She Hates Balls!

In fact, she loathes them so much, the actress launched a brand new website called IHateBalls.com (that's real) -- a fundraising campaign that asks you to spay or neuter your pets, thereby saving the lives of millions of animals killed in shelters each year. 

In support of this new endeavor, she also starred in a FunnyOrDie video that chronicles her hate-hate relationship with balls and lists some reasons why. Check it out!