
Shoshanna Circle Eyelet Dress at Nordstrom
On Quinn:

Calvin Klein Ruched Dot Dress at Nordstrom
On Santana:

Yellow Floral Chiffon Ring-Halter Minidress by BCBGMAXAZRIA
On Brittany:

Kimchi Blue Tenerife Dress at Urban Outfitters
On Tina:

Betsey Johnson Crochet Bell Sleeve Dress at revolveclothing.com
(The costume department dyed this dress yellow for the episode.)
Mercedes wears a yellow halter dress hand-made by the costume department for her.