On the
Target website a listing has shown up for a deluxe costume of Songbird Serenade by Disguise for $25. While Disguise recently announced their full line-up of
MLP The Movie costumes, and this one wasn't part of that. That fact combined with the info that all
Songbird Serenade so far are only available at Target is a strong hint that this costume is going to be another Target exclusive.
Below is the description that Target provides for the costume, which will be available in sizes S (4-6) and M (7-8):
Become your favorite pony, the hottest musical act in Equestria, Songbird Serenade in our Songbird Deluxe costume. Get the complete Songbird look with our tunic, pants, glovettes and mask. Tunic features matte satin fabric on bodice and shimmer organza glitter fabric with cutie mark skirting overlay. Pants have elastic waistband and flare hem with glitter organza fabric.