Justin Timberlake and Jessica Biel win Halloween's Best Dressed

Justin Timberlake and Jessica Biel always smash it when it comes to fancy dress. 

This Halloween was no different. 

The pair stepped into J.K. Rowling's wizarding world and dressed up as the cast of 'Harry Potter'.

Jessica Biel shared these photos on Instagram: 

JT commented on the photos 'Call me DumbleDAD' and we are here for it!