Owens, 31, previously criticized Styles, 26, who is the first man to appear solo on the cover of Vogue, for wearing a gown in the December issue photoshoot, calling for society to "bring back manly men."
On her Instagram Story Wednesday, Cyrus, 20, shared a photo from the shoot and wrote, "he wears this dress better than any of u nappy ass heauxz," according to a screenshot obtained by TMZ.
The singer's comment sparked outrage online, prompting an apology from the "July" singer.
"i am mortified that i used a term without knowing the context and history, but i know now and i am horrified and truly sorry. i will never use it again," she wrote on her Instagram Story Thursday.
"thank you for educating me," she continued. "i in no way meant to offend anyone. i am so so sorry."
Styles shared his own response to Owens' critique earlier this week, sharing a photo from his Variety Hitmaker of the Year cover shoot on Instagram and captioning it using Owens' own words — "Bring back manly men."
Owens wrote on Twitter shortly after, "When people try to tell me I don’t have influence, and then @Harry_Styles dedicates an entire post to my tweet. I inspire global conversation. #BringBackManlyMen Shots fired."
The "Watermelon Sugar" singer told Variety that the line between men's and women's clothing is "becoming more and more blurred."
"To not wear [something] because it’s females’ clothing, you shut out a whole world of great clothes," he said. "And I think what’s exciting about right now is you can wear what you like. It doesn’t have to be X or Y. Those lines are becoming more and more blurred."