After social media went into an uproar about their costumes, Duff took to Twitter to apologize and Walsh apologized via Instagram.
Duff isn't the only celebrity to stir up some costume controversy.
2. Chris Hemsworth
Actor Chris Hemsworth, recently apologized on Instagram for an American Indian costume he wore in early 2016. His apology came in conjunction with showing support to the protests against the Dakota Access Pipeline
A photo posted by Chris Hemsworth (@chrishemsworth) on
3. Julianne Hough
Actress and "Dancing with the Stars" dancer/judge Julianne Hough infamously dressed up as Crazy Eyes from "Orange is the New Black" for Halloween in 2013. Hough's decision to darken her skin using makeup proved to be too much for many people and she apologized for her choice, saying she had no intention to offend anyone.
Back in 2012, singer Chris Brown ran into some trouble when he showed up to his then on-again, off-again girlfriend Rhianna's Halloween party dressed up as a terrorist. His argument for wearing the costume: people dress up as monsters and the devil and other things, so it seemed like a good idea.