The 7 best celebrity Halloween costumes

Here are some of the best Halloween outfits celebrities wore this year.

Katy Perry and Orlando Bloom made headlines this week as Bill and Hillary Clinton at Kate Hudson's Halloween party.

Perry has previously announced that she is voting for Clinton and has even gone on tour to encourage people to vote.

Kylie Jenner decided to dress up as Christina Aguilera from her 'Dirrty' music video.

Bette Midler was dressed as Winifred Sanderson, her character from Hocus Pocus, and looked utterly fierce.

Perrie Edwards dressed as supervillain Poison Ivy.

Tinie Tempah dressed as Batman, obviously with his own Batmobile.

Cindy Crawford and her family made a fantastic punk band.

Jacob Tremblay arguably outdid everyone as Marty Mcfly from the classic Back to the Future movie - although apparently only his teachers knew who he was.

More: This dad's tweets about Halloween with his four daughters are brilliant