Katherine Heigl keeps her party dress under wraps while continuing to film the much-anticipated wedding scene for Grey's Anatomy in Hollywood.

It ended sweetly â€" with a cake to celebrate the end of Season 3 filming (as seen in this People magazine photo). It's been an up-and-down year, and the conclusion has yet to be seen by viewers, but let us be the first to congratulate the cast on another fine campaign.

Katherine and the rest of the gang return live in the two-hour Grey's Anatomy event, "The Other Side of This Life," tonight at 9 p.m. EDT.

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