Check out this awesome news from TVGuide.com:

Spin-off shmin-off. Let's talk Grey's Anatomy proper. The popular rom-dram may — just may — wash away its Season 3 backstage troubles and on-screen waterski-flirtations with a May wedding for Christina and Burke. Judging by pics and sightings shared at JustJared, Katherine Heigl's Izzie is suited up as a bridesmaid, while Ellen Pompeo appears to be the Mer of honor. The spied scenes, though, are merely from a bridal-shop try-on session for Yang & Co., so will the vow-swap actually go off without a hitch? Or will Roger Rees pull a Benjamin Braddock? Eww, I don't need to see that.

Here are the images from JustJared.com.