To more glam and fitted looks.Cindy Ord / Getty Images

r:Steve Granitz / FilmMagic

Or here at the 2021 Met Gala:Nancy Rivera / GC Images

While it’s normal for a person’s style to change as they mature, some fans have called Billie out about this — which she responded to on Instagram.Marc Grimwade / WireImage

“Letter to some comments I be seeing sometimes,” she wrote in the post. “I spent the first five years of my career getting absolutely OBLITERATED by you fools for being boyish and dressing how I did and constantly being told I’d be hotter if I acted like a woman.”Jim Spellman / FilmMagic

“And now when I feel comfortable enough to wear anything remotely feminine or fitting, I CHANGED and am a sellout…and ‘what happened to her.’ oMG iT’s nOt thE sAmE biLlie she’s just like the rest, bla[h] blah. You guys are true idiots. LOL. I can be both you fucking bozos. LET WOMEN EXIST!”@billieeilish

“Did you know women are multifaceted!!!!!???” she continued. “Shocking right?? Believe it or not, women can be interested in multiple things.”@billieeilish

“Also femininity does not equal weakness???!!! Omg?! Insane right? Who knew? And also totally unheard of and insane to want to express yourself differently at different times.”@billieeilish

She then told the haters they could do this:@billieeilish

Followed by this:@billieeilish