Pop singer Katy Perry was hardly recognizable in a Hillary Clinton Halloween costume.

The 32-year-old used prosthetics to help transform herself for Kate Hudson's annual Halloween party.

Perry arrived at the event as the Democratic presidential nominee along with "Clinton secret service," a friend dressed as Bill Clinton by her side and her boyfriend, Orlando Bloom, dressed up as a "Trump troll."

Perry photographed the outfits and posted the images on Instagram.

"#IMWITHME" Perry captioned a photo.

"BILL & HILL 4 EVA," she wrote under another.