Hilary Duff Apologizes for Controversial Halloween Costume

PHOTO: Hilary Duff and Jason Walsh attend the Casamigos Halloween Party at a private residence, Oct. 28, 2016, in Beverly Hills, California.PlayMichael Kovac/Getty Images
WATCH How the Stars Are Celebrating Halloween

Hilary Duff is apologizing for her controversial Halloween costume, which many have called offensive.

Interested in Halloween?

Add Halloween as an interest to stay up to date on the latest Halloween news, video, and analysis from ABC News.
Add Interest

The actress, along with her boyfriend Jason Walsh, dressed up as a pilgrim and Native American, respectively. The two were attending the annual Casamigos Halloween party in Los Angeles Friday.

"I am SO sorry to people I offended with my costume. It was not properly thought through and I am truly, from the bottom of my sorry," she tweeted Sunday.

Walsh also offered an apology.

"I meant no disrespect. I only have admiration for the indigenous people of America. In hindsight I would not have made that decision. I apologize to anyone I may have offended," he posted on Instagram.

Native American costumes have long drawn the ire of indigenous people, who believe their culture is being appropriated by others.