Cory Monteith & Dianna Agron: Glee Goes Glam!

Cory Monteith, Dianna Agron, and Matthew Morrison swap their usual McKinley High casual wear for more dressy attire while filming scenes for Glee on Wednesday (October 27) in Los Angeles.

Matthew munched on some snacks during a break, while Dianna sipped a drink.

Also spotted on set: Lea Michele wearing the same short red dress like she did the day before, and Heather Morris, who appeared to have a mini wardrobe malfunction with the zipper on her dress!

On Tuesday, Cory and co-star Naya Rivera went shopping at Target and picked up some Starbucks.

FYI: Lea and Dianna‘s dresses are made by Jenny Yoo.

15+ pictures inside of the Glee cast on set…