The wedding is on in Burktina-land!

Grey’s Anatomy star Katherine Heigl, aka Dr. Isobel ‘Izzie’ Stevens, stays warm between takes with an overcoat as she films scenes in a bridesmaid dress inside a bridal shop on Wednesday in Pasadena, Calif.

Heigl filmed a wardrobe fitting scene for the the upcoming season finale wedding of Cristina Yang (Sandra Oh, not pictured) and Preston Burke (Isaiah Washington, pictured).

Also spotted on set: Heigl smoking on set; Sara Ramirez, aka Dr. Callie Torres, walking behind Heigl and gabbing away on her cell phone

UPDATE :: Ellen Pompeo, aka Dr. Meredith Grey, was also spotted on set in Uggs and what looks like the maid-of-honor dress. Kudos if you can guess which magazine she’s holding!

Pictured: Ellen Pompeo (and music producer fiance Chris Ivery)and Sara Raimeriz, Katherine Heigl, Patrick Dempsey, Sandra Oh, Kate Walsh, T.R. Knight, and Justin Chambers.

UPDATE :: Congratulations to the cast of Grey’s Anatomy for picking a a Golden Globe for “Best Television Series - Drama”!!!!