This katy perry foto contains
vestido, vestido de la cena, vestido de la cena,, vestido de noche formal, vestido de cena, formal, vestido de noche, and dama de honor.
There might also be
bata, vestido, traje, balldress, pelota, and vestido de té.
Watch Katy's crew prepare the ExtraTerrestrial costumes and dance choreography for her upcoming performance of "E.T." on American Idol THIS THURSDAY, 4/21!