Dress: Embroidered Sweetheart Gown by Zac Posen (Thanks @ChaleyRose!)
Zoey Dalton (played by Chaley Rose) on Nashville on CMT was spotted wearing this blue CMAs dress on Nashville on episode 'You're Lookin' at Country' (3x08) in Nov 2014. Zoey's Dress is the Embroidered Sweetheart Gown by Zac Posen .