The "I Don't Care" singer was filmed on an Instagram Live by Hailey reinacting Taylor's recent banana video that was shared on The Tonight Show Starring Jimmy Fallon.
The video of Taylor came after she had eye surgery and was high on meds.
While Justin may have intended for the video to be funny, it came across to many fans as mocking and humiliating to Taylor, especially considering their history.
Unfortunately, because Hailey was filming the video, #Swifties have come for her.
People have gone as far as to say that Hailey has no talent, and is only famous for the last name she has recently acquired. Ouch.
One even shared a video of a girl roasting Hailey's "flop modeling career" writing, "If I could emphasise a video 1000x over I would xx"
Hailey actually saw the horrible tweet and responded.
She wrote, “I never knew I could make somebody so upset...truly I’m so sorry you’re THIS upset?! Lord have mercy I hope I’m never this upset about someone I don’t know!!”
She continued to tweet over the course of an hour.
“Listen. I think it’s awesome how passionate you are and how hard you ride for someone you’re a fan of, it’s beautiful how dedicated you are. If there’s something I did to personally hurt you or offend you, I’m sorry, it’s not my intention to upset you by any means. But being angry at someone you don’t know does nothing for you. I know ’cause I been there...all it’s gonna do is make you miserable. Don’t let ME of all people get you feeling that way. Trust me, I’m not worth the energy, nobody should be worth that energy!”
The fan, whose Twitter handle is @MyyyLover, of course saw Hailey's tweets to her, and quickly changed her name to "Lord Have Mercy" which seems to make fun of Hailey's first tweet.
"THIS IS PROOF THAT SHE DOESN'T HAVE A JOB... hailey stans come for me but she legit sits on twitter and attacks taylor stan accounts like literally GO TO MCDONALDS B*TCH."
The Taylor Swift fan has now changed her name to "it's beautiful how dedicated you are" on Twitter.
WATCH: Taylor Swift hilariously struggles to eat a banana after being HIGH AS A KITE from her eye surgery