It's that time of year when celebrities apologize for their offensive Halloween costumes.

So, who's immediately regretting her choice of holiday wear this year? That would be Hilary Duff, who attended the Casamigos Halloween Party Friday in Beverly Hills. The Younger and Lizzie Maguire star went out with her boyfriend, trainer Jason Walsh, dressed as a pilgrim and a Native American. She had on a short black outfit, and he wore a feather headdress and face paint.

Twitter didn't take to kindly to the look that many called "ignorant," "racist," and "out of touch," especially in light of Native American protests against the Dakota Access pipeline.

And so, Duff tweeted that she was "SO sorry" for offending people with her get-up. "It was not properly thought through," she said.

Walsh also posted that he "meant no disrespect" with his Halloween costume.

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.

A photo posted by JASON WALSH (@risemovement) on