Start consoling your child now. Lady Gaga-inspired Bratz dolls, complete with a zombie outfit and a removable head that reveals a bloody stump, may not be on store shelves in time for Christmas.

Bratz-maker MGA Entertainment Inc. wanted the Gaga look-alikes delivered to stores this summer — to land in time for the holidays — but Lady Gaga wants to postpone shipment until 2013, when her next album is set for release.