While the Seattle Grace regulars battle an "Invasion" of newcomers, one Grey's Anatomy mainstay, Dr. Miranda Bailey (Chandra Wilson), will be crossing to Private Practice!

Bailey brings a kidney transplant patient to L.A., and Addison, her former Seattle colleague, isn't the only Oceanside doc pleased to see her, according to the press release.

We don't know entirely what that cryptic description implies, but from the photo gallery we've seen, it looks like Bailey works closely with Sam (Taye Diggs) on the case.

Meanwhile, Addison's emotional affair with Noah comes back to bite her, while Sheldon and Pete finally - yes, really, finally! - discover who the father of Violet's baby is.

We've posted one image from the exciting episode below. Chanda is so awesome (and not very tall). Follow the link for lots more photos of Bailey on Private Practice ...

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