@@ObsessedAvacado Yes they were, watch the scene. When they get married, San has a dress, then she has pants. And Britt's dress is longer during the ceremony than it is during the party.
@@mo.o.o Yes. They changed outfits FOR THE RECEPTION - but are wearing the same party wedding outfits during the performance, the others changed into specific dresses for the "I'm So Excited" number. Brit and Santana did not change outfits for that performance and are wearing the same reception outfits they changed into before, but Sugar, Mercedes and the Mom's all did change into different dresses (and then changed back).