The fans, which included many grown adults, were annoyed with the "Bad Guy" singer for refusing to sign autographs.
After the backlash, Billie took to her Instagram Stories to clear up the situation.
"The only reason I'm making this is because I saw video of this all happening and I just wanted to clarify what actually happened," she said.
"If you watch the video, it literally looks like I'm walking by a bunch of fans and completely ignoring them and not saying hi to them, which is not at all what happened."
According to the singer, there were two very different types of people waiting for her. Actual fans, and people who were solely there to get signed autographs to later sell online.
While Billie is happy to spend her time chatting to fans and giving them selfies and hugs, she draws the line at signed autographs.
"I didn’t sign anything. It’s something that I don’t do because I used to, but I realized all anyone did was sell everything that I signed, so I stopped doing that. It was kind of like a policy of mine that I don’t," she said.
"I’d way rather get a hug and talk to you … than f*cking sign something so you can sell that sh*t," she said in the Story.
"I started to walk away because I realized none of these people actually cared about anything that had to do with me as a person," Billie explained.
"I walked over there only to say hi, only to hug people and I got pictures of me shoved into my f*cking face. I got no love whatsoever, so I left and then I got booed and [got] called a little b*tch and got told I was going to lose my Grammy nominations."
The angry 'fans' also apparently told her that "Lorde would've stopped".
"The fact that people can switch up like that, damn," Billie continued. "They wait outside for you and then immediately they don’t get what they want and they boo you, and f*cking curse at you. I’m like ‘Bro, I’m 17.'"
