United Kingdom, Feb. 22 -- Emma Stone will never joke about her friend Taylor Swift again after facing fierce backlash.

The 35-year-old star jokingly referred to her pal, 34, as an "a-hole" backstage at the Golden Globe Awards last month, but some of the 'Bad Blood' hitmaker's fans took the comments very seriously.

She told Variety magazine: "I definitely won't make a joke like that again. because I saw headlines that really pulled it out of context."

She pointed at herself, teasing: "What a dope."

Emma had won the Golden Globe for best film actress in a comedy or musical for her role in 'Poor things', and her famous friend was seen cheering and applauding her.

Speaking to reporters backstage, she quipped: "What an a******. I've know...